Сбой операции write tcp сокета ошибка 121

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  • Система — Windows server 2019.
    Установлено: 1C 8.3 x64, SQL 2019, КриптоПро 5.0, Office 2019, Терминальный сервер лиц. на устройство -100 шт.
    У некоторых пользователей из одной локальной сети возникает проблема с подключением по RDP к серверу.
    При попытке подключится получаем ошибку — «При попытке клиента подключиться, произошла ошибка лицензирования (лицензирование прервано по таймауту)».
    Сервер пингуется, у остальных работает, ошибок в службах лицензирования на сервере нет.
    В логах терминального сервиса присутствуют такие ошибки:

    «Сенас 50 был отключен, код причины 5

    Начать разрешение спора для сеанса:
    Пользователь: ———-
    Код сеанса: 50″

    Пытался на клиенте шаманить с разными настройками — в итоге сразу помогает смена ip адреса компьютера в локальной сети.
    Через какое то вреся и с новым ip не можум ворйти с такой же ошибкой — помагает все та же смена ip на любой другой.

    Поиском в инете пытался найти решение — наткнулся только на старые проблемы с КриптоПро 3.9 (из за SSL) -но они уже давно решены как я понимаю.
    Так же предлагают отключить протокол UDP на сервере для RDP.
    Может кто то решил эту проблему ?
    И вообще хочется понять ее происхождение. На 2008R2 такого никогда не было …
    Если помогает смена ip у клиента — это означает, что он попадает в какой то черный список ?….
    Что это за список и кто его вообще формирует и отслеживает ….?

    Спасибо.

Источник

Содержание

  1. How Socket Error Codes Depend on Runtime and Operating System
  2. Digging into the problem
  3. SocketErrorCode
  4. NativeErrorCode
  5. ErrorCode
  6. Writing cross-platform socket error handling
  7. Overview of the native error codes
  8. Remote Desktop Gateway Connection Issues
  9. Popular Topics in Microsoft Remote Desktop Services
  10. 7 Replies
  11. Read these next.
  12. poor wifi, school’s third floor
  13. Need help crafting a job posting for an IT Pro
  14. Snap! — AI Eye Contact, Mine Batteries, Headset-free Metaverse, D&D Betrayal
  15. Spark! Pro series – 13th January 2023
  16. How Socket Error Codes Depend on Runtime and Operating System
  17. Sockets and error codes
  18. Digging into the problem
  19. SocketErrorCode
  20. NativeErrorCode
  21. ErrorCode
  22. Writing cross-platform socket error handling
  23. Overview of the native error codes
  24. Summary

How Socket Error Codes Depend on Runtime and Operating System

Rider consists of several processes that send messages to each other via sockets. To ensure the reliability of the whole application, it’s important to properly handle all the socket errors. In our codebase, we had the following code which was adopted from Mono Debugger Libs and helps us communicate with debugger processes:

In the case of a failed connection because of a “ConnectionRefused” error, we are retrying the connection attempt. It works fine with .NET Framework and Mono. However, once we migrated to .NET Core, this method no longer correctly detects the “connection refused” situation on Linux and macOS. If we open the SocketException documentation, we will learn that this class has three different properties with error codes:

  • SocketError SocketErrorCode : Gets the error code that is associated with this exception.
  • int ErrorCode : Gets the error code that is associated with this exception.
  • int NativeErrorCode : Gets the Win32 error code associated with this exception.

What’s the difference between these properties? Should we expect different values on different runtimes or different operating systems? Which one should we use in production? Why do we have problems with ShouldRetryConnection on .NET Core? Let’s figure it all out!

Digging into the problem

If we run it on Windows, we will get the same value on .NET Framework, Mono, and .NET Core:

SocketErrorCode ErrorCode NativeErrorCode
.NET Framework 10061 10061 10061
Mono 10061 10061 10061
.NET Core 10061 10061 10061

10061 corresponds to the code of the connection refused socket error code in Windows (also known as WSAECONNREFUSED ). Now let’s run the same program on Linux:

SocketErrorCode ErrorCode NativeErrorCode
Mono 10061 10061 10061
.NET Core 10061 111 111

As you can see, Mono returns Windows-compatible error codes. The situation with .NET Core is different: it returns a Windows-compatible value for SocketErrorCode (10061) and a Linux-like value for ErrorCode and NativeErrorCode (111). Finally, let’s check macOS:

SocketErrorCode ErrorCode NativeErrorCode
Mono 10061 10061 10061
.NET Core 10061 61 61

Here, Mono is completely Windows-compatible again, but .NET Core returns 61 for ErrorCode and NativeErrorCode . In the IBM Knowledge Center, we can find a few more values for the connection refused error code from the Unix world (also known as ECONNREFUSED ):

  • AIX: 79
  • HP-UX: 239
  • Solaris: 146

For a better understanding of what’s going on, let’s check out the source code of all the properties.

SocketErrorCode

These values correspond to the Windows Sockets Error Codes.

NativeErrorCode

In .NET Core, the native code is calculated in the constructor (see SocketException.cs#L20):

The Windows implementation of GetNativeErrorForSocketError is trivial (see SocketException.Windows.cs):

The Unix implementation is more complicated (see SocketException.Unix.cs):

TryGetNativeErrorForSocketError should convert SocketError to the native Unix error code. Unfortunately, there exists no unequivocal mapping between Windows and Unix error codes. As such, the .NET team decided to create a Dictionary that maps error codes in the best possible way (see SocketErrorPal.Unix.cs):

Once we have an instance of Interop.Error , we call interopErr.Info().RawErrno . The implementation of RawErrno can be found in Interop.Errors.cs:

Here we are jumping to the native function SystemNative_ConvertErrorPalToPlatform that maps Error to the native integer code that is defined in errno.h. You can get all the values using the errno util. Here is a typical output on Linux:

Note that errno may be not available by default in your Linux distro. For example, on Debian, you should call sudo apt-get install moreutils to get this utility. Here is a typical output on macOS:

Hooray! We’ve finished our fascinating journey into the internals of socket error codes. Now you know where .NET is getting the native error code for each SocketException from!

ErrorCode

Writing cross-platform socket error handling

There was a lot of work involved in tracking down the error code to check against, but in the end, our code is much more readable now. Adding to that, this method is now also completely cross-platform, and works correctly on any runtime.

Overview of the native error codes

We executed this program on Windows, Linux, and macOS. Here are the aggregated results:

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Remote Desktop Gateway Connection Issues

I’ve got a remote desktop gateway setup on a Hyper-V machine for our network. Licensing is on the DC VM, Gateway/Web Access is on one VM, Connection Broker is a third VM and the Session Host is a final VM. I’m using Windows Server 2016 Datacenter in a AD setting.

I frequently have issues where when I try to use one of the remoteapps i’ll get the login prompts and then the window just disappears. On the offsite computer I’ll get a warning event:

Per the Server Manager, I’m not noticing any errors on the Connection Broker. In the Event Viewer under RemoteDesktopServices-RdpCoreTS I can see a connection was made via TCP, and then UDP, but then there’s the following error:

This is followed by a Disconnect Error 0, and then

The Session Host is just displaying the error:

This is follwed by Event 40 giving the disconnect reason code 12 which I’ve found to mean: «The user logged off, disconnecting the session.»

The gateway logs are showing that the Connection Authorization Policy requirements were met as were the Resource Authorization Policy requirements, a connection happened, lasted about 4 seconds and then disconnected.

I’ve tried making sure that group policy clearly states the licensing server, the connection broker, the security layer (SSL), the encyrption level (High).

Popular Topics in Microsoft Remote Desktop Services

what kind of deployment virtual desktop or session host?

I tried restarting the TermService on the Session Host, and instead of the login screen disappearing, I started getting a Black screen on login instead. I’ve seen the thread here:

And taken a look at our computers. The frequent remote computers I have access to via Teamviewer, so I’m now doublechecking their logins.

So, I’m not sure what’s happened in the last 8 hours. When I went to remote in from home tonight, it didn’t work. I got in a different way, and I can see that someone tried unsuccessfully to remote in as I left the office, and then nothing’s been able to bring this back up. I’ve restarted all the servers in the Remote Desktop configuration and no success (in the past, that has worked as a solution to fix the problem). I undid a lot of the GPO settings thinking that might help and that did not.

Right now for some unclear reason, from an on-prem machine/VM I can’t even RDP into the session host VM. And when I use my home computer to try to go through the gateway, I get an error message about not finding the connection broker on the network.

I’ll be revisiting it in the morning after more sleep.

Ok. I’m noticing that the RDP Session Host is not listening on Port 3389 and I’m trying to figure out why not. The Remote Desktop Services service is running, but the Remote Desktop Services UserMode Port Redirector service is not.

In the registry, it is still showing as Port Number 3389 under the RDP-Tcp section.

The firewall (Windows Firewall with Advanced Security) has both TCP and UDP port 3389 open.

There’s something weird going on with the printers, I don’t know if that would be related. It kept saying that the driver is unavailable for a networked printer, but then isn’t letting me delete or remove it. That printer installs via GPO and I’ve disabled the GPO, but no better success.

Still not working. I rolled out a second Session Host VM and a new collection and having the same problems there. To add the second session host, I had to disable all the Remote Desktop Services related GPOs, so those are still disabled. I’ve tried lowering the security settings. Still no success.

Any luck with solving this?

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How Socket Error Codes Depend on Runtime and Operating System

Table of Contents

This post is the first part of a blog post series that covers different technical challenges that we had to resolve during the migration of the Rider backend process from Mono to .NET Core. By sharing our experiences, we hope to help out those who are in the same boat.
There’s too much to share in one post, so we will make this into a series of posts. In this series:

Sockets and error codes

Rider consists of several processes that send messages to each other via sockets. To ensure the reliability of the whole application, it’s important to properly handle all the socket errors. In our codebase, we had the following code which was adopted from Mono Debugger Libs and helps us communicate with debugger processes:

In the case of a failed connection because of a “ConnectionRefused” error, we are retrying the connection attempt. It works fine with .NET Framework and Mono. However, once we migrated to .NET Core, this method no longer correctly detects the “connection refused” situation on Linux and macOS. If we open the SocketException documentation, we will learn that this class has three different properties with error codes:

  • SocketError SocketErrorCode : Gets the error code that is associated with this exception.
  • int ErrorCode : Gets the error code that is associated with this exception.
  • int NativeErrorCode : Gets the Win32 error code associated with this exception.

What’s the difference between these properties? Should we expect different values on different runtimes or different operating systems? Which one should we use in production? Why do we have problems with ShouldRetryConnection on .NET Core? Let’s figure it all out!

Digging into the problem

Let’s start with the following program, which prints error code property values for SocketError.ConnectionRefused :

If we run it on Windows, we will get the same value on .NET Framework, Mono, and .NET Core:

SocketErrorCode ErrorCode NativeErrorCode
.NET Framework 10061 10061 10061
Mono 10061 10061 10061
.NET Core 10061 10061 10061

10061 corresponds to the code of the connection refused socket error code in Windows (also known as WSAECONNREFUSED ).
Now let’s run the same program on Linux:

SocketErrorCode ErrorCode NativeErrorCode
Mono 10061 10061 10061
.NET Core 10061 111 111

As you can see, Mono returns Windows-compatible error codes. The situation with .NET Core is different: it returns a Windows-compatible value for SocketErrorCode (10061) and a Linux-like value for ErrorCode and NativeErrorCode (111).
Finally, let’s check macOS:

SocketErrorCode ErrorCode NativeErrorCode
Mono 10061 10061 10061
.NET Core 10061 61 61

Here, Mono is completely Windows-compatible again, but .NET Core returns 61 for ErrorCode and NativeErrorCode .
In the IBM Knowledge Center, we can find a few more values for the connection refused error code from the Unix world (also known as ECONNREFUSED ):

For a better understanding of what’s going on, let’s check out the source code of all the properties.

SocketErrorCode

SocketException.SocketErrorCode returns a value from the SocketError enum. The numerical values of the enum elements are the same on all the runtimes (see its implementation in .NET Framework, .NET Core 3.1.3, and Mono 6.8.0.105):

These values correspond to the Windows Sockets Error Codes.

NativeErrorCode

In .NET Framework and Mono, SocketErrorCode and NativeErrorCode always have the same values:

In .NET Core, the native code is calculated in the constructor (see SocketException.cs#L20):

The Windows implementation of GetNativeErrorForSocketError is trivial (see SocketException.Windows.cs):

The Unix implementation is more complicated (see SocketException.Unix.cs):

TryGetNativeErrorForSocketError should convert SocketError to the native Unix error code.
Unfortunately, there exists no unequivocal mapping between Windows and Unix error codes. As such, the .NET team decided to create a Dictionary that maps error codes in the best possible way (see SocketErrorPal.Unix.cs):

Once we have an instance of Interop.Error , we call interopErr.Info().RawErrno . The implementation of RawErrno can be found in Interop.Errors.cs:

Here we are jumping to the native function SystemNative_ConvertErrorPalToPlatform that maps Error to the native integer code that is defined in errno.h. You can get all the values using the errno util. Here is a typical output on Linux:

Note that errno may be not available by default in your Linux distro. For example, on Debian, you should call sudo apt-get install moreutils to get this utility.
Here is a typical output on macOS:

Hooray! We’ve finished our fascinating journey into the internals of socket error codes. Now you know where .NET is getting the native error code for each SocketException from!

ErrorCode

The ErrorCode property is the most boring one, as it always returns NativeErrorCode .
.NET Framework, Mono 6.8.0.105:

Writing cross-platform socket error handling

Circling back to the original method we started this post with, we rewrote ShouldRetryConnection as follows:

There was a lot of work involved in tracking down the error code to check against, but in the end, our code is much more readable now. Adding to that, this method is now also completely cross-platform, and works correctly on any runtime.

Overview of the native error codes

In some situations, you may want to have a table with native error codes on different operating systems. We can get these values with the following code snippet:

We executed this program on Windows, Linux, and macOS. Here are the aggregated results:

SocketError Windows Linux macOS
Success
OperationAborted 995 125 89
IOPending 997 115 36
Interrupted 10004 4 4
AccessDenied 10013 13 13
Fault 10014 14 14
InvalidArgument 10022 22 22
TooManyOpenSockets 10024 23 23
WouldBlock 10035 11 35
InProgress 10036 115 36
AlreadyInProgress 10037 114 37
NotSocket 10038 88 38
DestinationAddressRequired 10039 89 39
MessageSize 10040 90 40
ProtocolType 10041 91 41
ProtocolOption 10042 92 42
ProtocolNotSupported 10043 93 43
SocketNotSupported 10044 94 44
OperationNotSupported 10045 95 45
ProtocolFamilyNotSupported 10046 96 46
AddressFamilyNotSupported 10047 97 47
AddressAlreadyInUse 10048 98 48
AddressNotAvailable 10049 99 49
NetworkDown 10050 100 50
NetworkUnreachable 10051 101 51
NetworkReset 10052 102 52
ConnectionAborted 10053 103 53
ConnectionReset 10054 104 54
NoBufferSpaceAvailable 10055 105 55
IsConnected 10056 106 56
NotConnected 10057 107 57
Shutdown 10058 32 32
TimedOut 10060 110 60
ConnectionRefused 10061 111 61
HostDown 10064 112 64
HostUnreachable 10065 113 65
ProcessLimit 10067 10067 10067
SystemNotReady 10091 10091 10091
VersionNotSupported 10092 10092 10092
NotInitialized 10093 10093 10093
Disconnecting 10101 108 58
TypeNotFound 10109 10109 10109
HostNotFound 11001 -131073 -131073
TryAgain 11002 11 35
NoRecovery 11003 11003 11003
NoData 11004 61 96
SocketError -1 -1 -1

This table may be useful if you work with native socket error codes.

Summary

From this investigation, we’ve learned the following:

  • SocketException.SocketErrorCode returns a value from the SocketError enum. The numerical values of the enum elements always correspond to the Windows socket error codes.
  • SocketException.ErrorCode always returns SocketException.NativeErrorCode .
  • SocketException.NativeErrorCode on .NET Framework and Mono always corresponds to the Windows error codes (even if you are using Mono on Unix). On .NET Core, SocketException.NativeErrorCode equals the corresponding native error code from the current operating system.


A few practical recommendations:

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Code Reason
0 No error
1 User-initiated client disconnect.
2 User-initiated client logoff.
3 Your Remote Desktop Services session has ended, possibly for one of the following reasons: The administrator has ended the session. An error occurred while the connection was being established. A network problem occurred. For help solving the problem, see «Remote Desktop» in Help and Support.
260 Remote Desktop can’t find the computer «». This might mean that «» does not belong to the specified network. Verify the computer name and domain that you are trying to connect to.
262 This computer can’t connect to the remote computer. Your computer does not have enough virtual memory available. Close your other programs, and then try connecting again. If the problem continues, contact your network administrator or technical support.
264 This computer can’t connect to the remote computer. The two computers couldn’t connect in the amount of time allotted. Try connecting again. If the problem continues, contact your network administrator or technical support.
266 The smart card service is not running. Please start the smart card service and try again.
516 Remote Desktop can’t connect to the remote computer for one of these reasons: 1) Remote access to the server is not enabled 2) The remote computer is turned off 3) The remote computer is not available on the network Make sure the remote computer is turned on and connected to the network, and that remote access is enabled.
522 A smart card reader was not detected. Please attach a smart card reader and try again.
772 This computer can’t connect to the remote computer. The connection was lost due to a network error. Try connecting again. If the problem continues, contact your network administrator or technical support.
778 There is no card inserted in the smart card reader. Please insert your smart card and try again.
1030 Because of a security error, the client could not connect to the remote computer. Verify that you are logged on to the network, and then try connecting again.
1032 The specified computer name contains invalid characters. Please verify the name and try again.
1034 An error has occurred in the smart card subsystem. Please contact your helpdesk about this error.
1796 This computer can’t connect to the remote computer. Try connecting again. If the problem continues, contact the owner of the remote computer or your network administrator.
1800 Your computer could not connect to another console session on the remote computer because you already have a console session in progress.
2056 The remote computer disconnected the session because of an error in the licensing protocol. Please try connecting to the remote computer again or contact your server administrator.
2308 Your Remote Desktop Services session has ended. The connection to the remote computer was lost, possibly due to network connectivity problems. Try connecting to the remote computer again. If the problem continues, contact your network administrator or technical support.
2311 The connection has been terminated because an unexpected server authentication certificate was received from the remote computer. Try connecting again. If the problem continues, contact the owner of the remote computer or your network administrator.
2312 A licensing error occurred while the client was attempting to connect (Licensing timed out). Please try connecting to the remote computer again.
2567 The specified username does not exist. Verify the username and try logging in again. If the problem continues, contact your system administrator or technical support.
2820 This computer can’t connect to the remote computer. An error occurred that prevented the connection. Try connecting again. If the problem continues, contact the owner of the remote computer or your network administrator.
2822 Because of an error in data encryption, this session will end. Please try connecting to the remote computer again.
2823 The user account is currently disabled and cannot be used. For assistance, contact your system administrator or technical support.
2825 The remote computer requires Network Level Authentication, which your computer does not support. For assistance, contact your system administrator or technical support.
3079 A user account restriction (for example, a time-of-day restriction) is preventing you from logging on. For assistance, contact your system administrator or technical support.
3080 The remote session was disconnected because of a decompression failure at the client side. Please try connecting to the remote computer again.
3335 As a security precaution, the user account has been locked because there were too many logon attempts or password change attempts. Wait a while before trying again, or contact your system administrator or technical support.
3337 The security policy of your computer requires you to type a password on the Windows Security dialog box. However, the remote computer you want to connect to cannot recognize credentials supplied using the Windows Security dialog box. For assistance, contact your system administrator or technical support.
3590 The client can’t connect because it doesn’t support FIPS encryption level. Please lower the server side required security level Policy, or contact your network administrator for assistance
3591 This user account has expired. For assistance, contact your system administrator or technical support.
3592 Failed to reconnect to your remote session. Please try to connect again.
3593 The remote PC doesn’t support Restricted Administration mode.
3847 This user account’s password has expired. The password must change in order to logon. Please update the password or contact your system administrator or technical support.
3848 A connection will not be made because credentials may not be sent to the remote computer. For assistance, contact your system administrator.
4103 The system administrator has restricted the times during which you may log in. Try logging in later. If the problem continues, contact your system administrator or technical support.
4104 The remote session was disconnected because your computer is running low on video resources. Close your other programs, and then try connecting again. If the problem continues, contact your network administrator or technical support.
4359 The system administrator has limited the computers you can log on with. Try logging on at a different computer. If the problem continues, contact your system administrator or technical support.
4615 You must change your password before logging on the first time. Please update your password or contact your system administrator or technical support.
4871 The system administrator has restricted the types of logon (network or interactive) that you may use. For assistance, contact your system administrator or technical support.
5127 The Kerberos sub-protocol User2User is required. For assistance, contact your system administrator or technical support.
6919 Remote Desktop cannot connect to the remote computer because the authentication certificate received from the remote computer is expired or invalid. In some cases, this error might also be caused by a large time discrepancy between the client and server computers.
7431 Remote Desktop cannot verify the identity of the remote computer because there is a time or date difference between your computer and the remote computer. Make sure your computer’s clock is set to the correct time, and then try connecting again. If the problem occurs again, contact your network administrator or the owner of the remote computer.
8711 Your computer can’t connect to the remote computer because your smart card is locked out. Contact your network administrator about unlocking your smart card or resetting your PIN.
9479 Could not auto-reconnect to your applications,please re-launch your applications
9732 Client and server versions do not match. Please upgrade your client software and then try connecting again.
33554433 Failed to reconnect to the remote program. Please restart the remote program.
33554434 The remote computer does not support RemoteApp. For assistance, contact your system administrator.
50331649 Your computer can’t connect to the remote computer because the username or password is not valid. Type a valid user name and password.
50331650 Your computer can’t connect to the remote computer because it can’t verify the certificate revocation list. Contact your network administrator for assistance.
50331651 Your computer can’t connect to the remote computer due to one of the following reasons: 1) The requested Remote Desktop Gateway server address and the server SSL certificate subject name do not match. 2) The certificate is expired or revoked. 3) The certificate root authority does not trust the certificate. Contact your network administrator for assistance.
50331652 Your computer can’t connect to the remote computer because the SSL certificate was revoked by the certification authority. Contact your network administrator for assistance.
50331653 This computer can’t verify the identity of the RD Gateway «». It’s not safe to connect to servers that can’t be identified. Contact your network administrator for assistance.
50331654 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server address requested and the certificate subject name do not match. Contact your network administrator for assistance.
50331655 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server’s certificate has expired or has been revoked. Contact your network administrator for assistance.
50331656 Your computer can’t connect to the remote computer because an error occurred on the remote computer that you want to connect to. Contact your network administrator for assistance.
50331657 An error occurred while sending data to the Remote Desktop Gateway server. The server is temporarily unavailable or a network connection is down. Try again later, or contact your network administrator for assistance.
50331658 An error occurred while receiving data from the Remote Desktop Gateway server. Either the server is temporarily unavailable or a network connection is down. Try again later, or contact your network administrator for assistance.
50331659 Your computer can’t connect to the remote computer because an alternate logon method is required. Contact your network administrator for assistance.
50331660 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server address is unreachable or incorrect. Type a valid Remote Desktop Gateway server address.
50331661 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server is temporarily unavailable. Try reconnecting later or contact your network administrator for assistance.
50331662 Your computer can’t connect to the remote computer because the Remote Desktop Services client component is missing or is an incorrect version. Verify that setup was completed successfully, and then try reconnecting later.
50331663 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server is running low on server resources and is temporarily unavailable. Try reconnecting later or contact your network administrator for assistance.
50331664 Your computer can’t connect to the remote computer because an incorrect version of rpcrt4.dll has been detected. Verify that all components for Remote Desktop Gateway client were installed correctly.
50331665 Your computer can’t connect to the remote computer because no smart card service is installed. Install a smart card service and then try again, or contact your network administrator for assistance.
50331666 Your computer can’t stay connected to the remote computer because the smart card has been removed. Try again using a valid smart card, or contact your network administrator for assistance.
50331667 Your computer can’t connect to the remote computer because no smart card is available. Try again using a smart card.
50331668 Your computer can’t stay connected to the remote computer because the smart card has been removed. Reinsert the smart card and then try again.
50331669 Your computer can’t connect to the remote computer because the user name or password is not valid. Please type a valid user name and password.
50331671 Your computer can’t connect to the remote computer because a security package error occurred in the transport layer. Retry the connection or contact your network administrator for assistance.
50331672 The Remote Desktop Gateway server has ended the connection. Try reconnecting later or contact your network administrator for assistance.
50331673 The Remote Desktop Gateway server administrator has ended the connection. Try reconnecting later or contact your network administrator for assistance.
50331674 Your computer can’t connect to the remote computer due to one of the following reasons: 1) Your credentials (the combination of user name, domain, and password) were incorrect. 2) Your smart card was not recognized.
50331675 Remote Desktop can’t connect to the remote computer «» for one of these reasons: 1) Your user account is not listed in the RD Gateway’s permission list 2) You might have specified the remote computer in NetBIOS format (for example, computer1), but the RD Gateway is expecting an FQDN or IP address format (for example, computer1.fabrikam.com or 157.60.0.1). Contact your network administrator for assistance.
50331676 Remote Desktop can’t connect to the remote computer «» for one of these reasons: 1) Your user account is not authorized to access the RD Gateway «» 2) Your computer is not authorized to access the RD Gateway «» 3) You are using an incompatible authentication method (for example, the RD Gateway might be expecting a smart card but you provided a password) Contact your network administrator for assistance.
50331679 Your computer can’t connect to the remote computer because your network administrator has restricted access to this RD Gateway server. Contact your network administrator for assistance.
50331680 Your computer can’t connect to the remote computer because the web proxy server requires authentication. To allow unauthenticated traffic to an RD Gateway server through your web proxy server, contact your network administrator.
50331681 Your computer can’t connect to the remote computer because your password has expired or you must change the password. Please change the password or contact your network administrator or technical support for assistance.
50331682 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server reached its maximum allowed connections. Try reconnecting later or contact your network administrator for assistance.
50331683 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server does not support the request. Contact your network administrator for assistance.
50331684 Your computer can’t connect to the remote computer because the client does not support one of the Remote Desktop Gateway’s capabilities. Contact your network administrator for assistance.
50331685 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server and this computer are incompatible. Contact your network administrator for assistance.
50331686 Your computer can’t connect to the remote computer because the credentials used are not valid. Insert a valid smart card and type a PIN or password, and then try connecting again.
50331687 Your computer can’t connect to the remote computer because your computer or device did not pass the Network Access Protection requirements set by your network administrator. Contact your network administrator for assistance.
50331688 Your computer can’t connect to the remote computer because no certificate was configured to use at the Remote Desktop Gateway server. Contact your network administrator for assistance.
50331689 Your computer can’t connect to the remote computer because the RD Gateway server that you are trying to connect to is not allowed by your computer administrator. If you are the administrator, add this Remote Desktop Gateway server name to the trusted Remote Desktop Gateway server list on your computer and then try connecting again.
50331690 Your computer can’t connect to the remote computer because your computer or device did not meet the Network Access Protection requirements set by your network administrator, for one of the following reasons: 1) The Remote Desktop Gateway server name and the server’s public key certificate subject name do not match. 2) The certificate has expired or has been revoked. 3) The certificate root authority does not trust the certificate. 4) The certificate key extension does not support encryption. 5) Your computer cannot verify the certificate revocation list. Contact your network administrator for assistance.
50331691 Your computer can’t connect to the remote computer because a user name and password are required to authenticate to the Remote Desktop Gateway server instead of smart card credentials.
50331692 Your computer can’t connect to the remote computer because smart card credentials are required to authenticate to the Remote Desktop Gateway server instead of a user name and password.
50331693 Your computer can’t connect to the remote computer because no smart card reader is detected. Connect a smart card reader and then try again, or contact your network administrator for assistance.
50331695 Your computer can’t connect to the remote computer because authentication to the firewall failed due to missing firewall credentials. To resolve the issue, go to the firewall website that your network administrator recommends, and then try the connection again, or contact your network administrator for assistance.
50331696 Your computer can’t connect to the remote computer because authentication to the firewall failed due to invalid firewall credentials. To resolve the issue, go to the firewall website that your network administrator recommends, and then try the connection again, or contact your network administrator for assistance.
50331698 Your Remote Desktop Services session ended because the remote computer didn’t receive any input from you.
50331699 The connection has been disconnected because the session timeout limit was reached.
50331700 Your computer can’t connect to the remote computer because an invalid cookie was sent to the Remote Desktop Gateway server. Contact your network administrator for assistance.
50331701 Your computer can’t connect to the remote computer because the cookie was rejected by the Remote Desktop Gateway server. Contact your network administrator for assistance.
50331703 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server is expecting an authentication method different from the one attempted. Contact your network administrator for assistance.
50331704 The RD Gateway connection ended because periodic user authentication failed. Try reconnecting with a correct user name and password. If the reconnection fails, contact your network administrator for further assistance.
50331705 The RD Gateway connection ended because periodic user authorization failed. Try reconnecting with a correct user name and password. If the reconnection fails, contact your network administrator for further assistance.
50331707 Your computer can’t connect to the remote computer because the Remote Desktop Gateway and the remote computer are unable to exchange policies. This could happen due to one of the following reasons: 1. The remote computer is not capable of exchanging policies with the Remote Desktop Gateway. 2. The remote computer’s configuration does not permit a new connection. 3. The connection between the Remote Desktop Gateway and the remote computer ended. Contact your network administrator for assistance.
50331708 Your computer can’t connect to the remote computer, possibly because the smart card is not valid, the smart card certificate was not found in the certificate store, or the Certificate Propagation service is not running. Contact your network administrator for assistance.
50331709 To use this program or computer, first log on to the following website: <a href=»»></a>.
50331710 To use this program or computer, you must first log on to an authentication website. Contact your network administrator for assistance.
50331711 Your session has ended. To continue using the program or computer, first log on to the following website: <a href=»»></a>.
50331712 Your session has ended. To continue using the program or computer, you must first log on to an authentication website. Contact your network administrator for assistance.
50331713 The RD Gateway connection ended because periodic user authorization failed. Your computer or device didn’t pass the Network Access Protection (NAP) requirements set by your network administrator. Contact your network administrator for assistance.
50331714 Your computer can’t connect to the remote computer because the size of the cookie exceeded the supported size. Contact your network administrator for assistance.
50331716 Your computer can’t connect to the remote computer using the specified forward proxy configuration. Contact your network administrator for assistance.
50331717 This computer cannot connect to the remote resource because you do not have permission to this resource. Contact your network administrator for assistance.
50331718 There are currently no resources available to connect to. Retry the connection or contact your network administrator.
50331719 An error occurred while Remote Desktop Connection was accessing this resource. Retry the connection or contact your system administrator.
50331721 Your Remote Desktop Client needs to be updated to the newest version. Contact your system administrator for help installing the update, and then try again.
50331722 Your network configuration doesn’t allow the necessary HTTPS ports. Contact your network administrator for help allowing those ports or disabling the web proxy, and then try connecting again.
50331723 We’re setting up more resources, and it might take a few minutes. Please try again later.
50331724 The user name you entered does not match the user name used to subscribe to your applications. If you wish to sign in as a different user please choose Sign Out from the Home menu.
50331725 Looks like there are too many users trying out the Azure RemoteApp service at the moment. Please wait a few minutes and then try again.
50331726 Maximum user limit has been reached. Please contact your administrator for further assistance.
50331727 Your trial period for Azure RemoteApp has expired. Ask your admin or tech support for help.
50331728 You no longer have access to Azure RemoteApp. Ask your admin or tech support for help.
Источник

Проблема такая, может кто сталкивался.
сервер с — Windows Server 2019, служба удаленных рабочих столов запущена.
Когда сервер загружается я свободно подключаюсь к нему с локальной машины под Win 10 через подключение к удаленному рабочему столу, целый день все работает нормально. Но! прихожу на следующий день и при подключении выскакивает вот такое сообщение:
5fed599b019c6869815110.png

Помогает перезагрузка сервера, перезагружаюсь и все ок, опять день подключаюсь. Посмотрел службы после ошибки, удаленных рабочих столов запущена. Что за ерунда? Куда копать?

Посмотрел журнал RemoteDesktopServices-RdpCoreTS,
к примеру вчера в 17:55 выдало ошибку Failed GetConnectionProperty in CUMRDPConnection::QueryProperty at 2884 err[0x80004001]
Потом появился ряд предупреждений: Сбой операции Write TCP-сокета, ошибка 121
Может в этом проблема? Гугл пишет про сервер 2016 и обновление к нему….хз

Источник
Code Reason
0 No error
1 User-initiated client disconnect.
2 User-initiated client logoff.
3 Your Remote Desktop Services session has ended, possibly for one of the following reasons: The administrator has ended the session. An error occurred while the connection was being established. A network problem occurred. For help solving the problem, see «Remote Desktop» in Help and Support.
260 Remote Desktop can’t find the computer «». This might mean that «» does not belong to the specified network. Verify the computer name and domain that you are trying to connect to.
262 This computer can’t connect to the remote computer. Your computer does not have enough virtual memory available. Close your other programs, and then try connecting again. If the problem continues, contact your network administrator or technical support.
264 This computer can’t connect to the remote computer. The two computers couldn’t connect in the amount of time allotted. Try connecting again. If the problem continues, contact your network administrator or technical support.
266 The smart card service is not running. Please start the smart card service and try again.
516 Remote Desktop can’t connect to the remote computer for one of these reasons: 1) Remote access to the server is not enabled 2) The remote computer is turned off 3) The remote computer is not available on the network Make sure the remote computer is turned on and connected to the network, and that remote access is enabled.
522 A smart card reader was not detected. Please attach a smart card reader and try again.
772 This computer can’t connect to the remote computer. The connection was lost due to a network error. Try connecting again. If the problem continues, contact your network administrator or technical support.
778 There is no card inserted in the smart card reader. Please insert your smart card and try again.
1030 Because of a security error, the client could not connect to the remote computer. Verify that you are logged on to the network, and then try connecting again.
1032 The specified computer name contains invalid characters. Please verify the name and try again.
1034 An error has occurred in the smart card subsystem. Please contact your helpdesk about this error.
1796 This computer can’t connect to the remote computer. Try connecting again. If the problem continues, contact the owner of the remote computer or your network administrator.
1800 Your computer could not connect to another console session on the remote computer because you already have a console session in progress.
2056 The remote computer disconnected the session because of an error in the licensing protocol. Please try connecting to the remote computer again or contact your server administrator.
2308 Your Remote Desktop Services session has ended. The connection to the remote computer was lost, possibly due to network connectivity problems. Try connecting to the remote computer again. If the problem continues, contact your network administrator or technical support.
2311 The connection has been terminated because an unexpected server authentication certificate was received from the remote computer. Try connecting again. If the problem continues, contact the owner of the remote computer or your network administrator.
2312 A licensing error occurred while the client was attempting to connect (Licensing timed out). Please try connecting to the remote computer again.
2567 The specified username does not exist. Verify the username and try logging in again. If the problem continues, contact your system administrator or technical support.
2820 This computer can’t connect to the remote computer. An error occurred that prevented the connection. Try connecting again. If the problem continues, contact the owner of the remote computer or your network administrator.
2822 Because of an error in data encryption, this session will end. Please try connecting to the remote computer again.
2823 The user account is currently disabled and cannot be used. For assistance, contact your system administrator or technical support.
2825 The remote computer requires Network Level Authentication, which your computer does not support. For assistance, contact your system administrator or technical support.
3079 A user account restriction (for example, a time-of-day restriction) is preventing you from logging on. For assistance, contact your system administrator or technical support.
3080 The remote session was disconnected because of a decompression failure at the client side. Please try connecting to the remote computer again.
3335 As a security precaution, the user account has been locked because there were too many logon attempts or password change attempts. Wait a while before trying again, or contact your system administrator or technical support.
3337 The security policy of your computer requires you to type a password on the Windows Security dialog box. However, the remote computer you want to connect to cannot recognize credentials supplied using the Windows Security dialog box. For assistance, contact your system administrator or technical support.
3590 The client can’t connect because it doesn’t support FIPS encryption level. Please lower the server side required security level Policy, or contact your network administrator for assistance
3591 This user account has expired. For assistance, contact your system administrator or technical support.
3592 Failed to reconnect to your remote session. Please try to connect again.
3593 The remote PC doesn’t support Restricted Administration mode.
3847 This user account’s password has expired. The password must change in order to logon. Please update the password or contact your system administrator or technical support.
3848 A connection will not be made because credentials may not be sent to the remote computer. For assistance, contact your system administrator.
4103 The system administrator has restricted the times during which you may log in. Try logging in later. If the problem continues, contact your system administrator or technical support.
4104 The remote session was disconnected because your computer is running low on video resources. Close your other programs, and then try connecting again. If the problem continues, contact your network administrator or technical support.
4359 The system administrator has limited the computers you can log on with. Try logging on at a different computer. If the problem continues, contact your system administrator or technical support.
4615 You must change your password before logging on the first time. Please update your password or contact your system administrator or technical support.
4871 The system administrator has restricted the types of logon (network or interactive) that you may use. For assistance, contact your system administrator or technical support.
5127 The Kerberos sub-protocol User2User is required. For assistance, contact your system administrator or technical support.
6919 Remote Desktop cannot connect to the remote computer because the authentication certificate received from the remote computer is expired or invalid. In some cases, this error might also be caused by a large time discrepancy between the client and server computers.
7431 Remote Desktop cannot verify the identity of the remote computer because there is a time or date difference between your computer and the remote computer. Make sure your computer’s clock is set to the correct time, and then try connecting again. If the problem occurs again, contact your network administrator or the owner of the remote computer.
8711 Your computer can’t connect to the remote computer because your smart card is locked out. Contact your network administrator about unlocking your smart card or resetting your PIN.
9479 Could not auto-reconnect to your applications,please re-launch your applications
9732 Client and server versions do not match. Please upgrade your client software and then try connecting again.
33554433 Failed to reconnect to the remote program. Please restart the remote program.
33554434 The remote computer does not support RemoteApp. For assistance, contact your system administrator.
50331649 Your computer can’t connect to the remote computer because the username or password is not valid. Type a valid user name and password.
50331650 Your computer can’t connect to the remote computer because it can’t verify the certificate revocation list. Contact your network administrator for assistance.
50331651 Your computer can’t connect to the remote computer due to one of the following reasons: 1) The requested Remote Desktop Gateway server address and the server SSL certificate subject name do not match. 2) The certificate is expired or revoked. 3) The certificate root authority does not trust the certificate. Contact your network administrator for assistance.
50331652 Your computer can’t connect to the remote computer because the SSL certificate was revoked by the certification authority. Contact your network administrator for assistance.
50331653 This computer can’t verify the identity of the RD Gateway «». It’s not safe to connect to servers that can’t be identified. Contact your network administrator for assistance.
50331654 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server address requested and the certificate subject name do not match. Contact your network administrator for assistance.
50331655 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server’s certificate has expired or has been revoked. Contact your network administrator for assistance.
50331656 Your computer can’t connect to the remote computer because an error occurred on the remote computer that you want to connect to. Contact your network administrator for assistance.
50331657 An error occurred while sending data to the Remote Desktop Gateway server. The server is temporarily unavailable or a network connection is down. Try again later, or contact your network administrator for assistance.
50331658 An error occurred while receiving data from the Remote Desktop Gateway server. Either the server is temporarily unavailable or a network connection is down. Try again later, or contact your network administrator for assistance.
50331659 Your computer can’t connect to the remote computer because an alternate logon method is required. Contact your network administrator for assistance.
50331660 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server address is unreachable or incorrect. Type a valid Remote Desktop Gateway server address.
50331661 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server is temporarily unavailable. Try reconnecting later or contact your network administrator for assistance.
50331662 Your computer can’t connect to the remote computer because the Remote Desktop Services client component is missing or is an incorrect version. Verify that setup was completed successfully, and then try reconnecting later.
50331663 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server is running low on server resources and is temporarily unavailable. Try reconnecting later or contact your network administrator for assistance.
50331664 Your computer can’t connect to the remote computer because an incorrect version of rpcrt4.dll has been detected. Verify that all components for Remote Desktop Gateway client were installed correctly.
50331665 Your computer can’t connect to the remote computer because no smart card service is installed. Install a smart card service and then try again, or contact your network administrator for assistance.
50331666 Your computer can’t stay connected to the remote computer because the smart card has been removed. Try again using a valid smart card, or contact your network administrator for assistance.
50331667 Your computer can’t connect to the remote computer because no smart card is available. Try again using a smart card.
50331668 Your computer can’t stay connected to the remote computer because the smart card has been removed. Reinsert the smart card and then try again.
50331669 Your computer can’t connect to the remote computer because the user name or password is not valid. Please type a valid user name and password.
50331671 Your computer can’t connect to the remote computer because a security package error occurred in the transport layer. Retry the connection or contact your network administrator for assistance.
50331672 The Remote Desktop Gateway server has ended the connection. Try reconnecting later or contact your network administrator for assistance.
50331673 The Remote Desktop Gateway server administrator has ended the connection. Try reconnecting later or contact your network administrator for assistance.
50331674 Your computer can’t connect to the remote computer due to one of the following reasons: 1) Your credentials (the combination of user name, domain, and password) were incorrect. 2) Your smart card was not recognized.
50331675 Remote Desktop can’t connect to the remote computer «» for one of these reasons: 1) Your user account is not listed in the RD Gateway’s permission list 2) You might have specified the remote computer in NetBIOS format (for example, computer1), but the RD Gateway is expecting an FQDN or IP address format (for example, computer1.fabrikam.com or 157.60.0.1). Contact your network administrator for assistance.
50331676 Remote Desktop can’t connect to the remote computer «» for one of these reasons: 1) Your user account is not authorized to access the RD Gateway «» 2) Your computer is not authorized to access the RD Gateway «» 3) You are using an incompatible authentication method (for example, the RD Gateway might be expecting a smart card but you provided a password) Contact your network administrator for assistance.
50331679 Your computer can’t connect to the remote computer because your network administrator has restricted access to this RD Gateway server. Contact your network administrator for assistance.
50331680 Your computer can’t connect to the remote computer because the web proxy server requires authentication. To allow unauthenticated traffic to an RD Gateway server through your web proxy server, contact your network administrator.
50331681 Your computer can’t connect to the remote computer because your password has expired or you must change the password. Please change the password or contact your network administrator or technical support for assistance.
50331682 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server reached its maximum allowed connections. Try reconnecting later or contact your network administrator for assistance.
50331683 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server does not support the request. Contact your network administrator for assistance.
50331684 Your computer can’t connect to the remote computer because the client does not support one of the Remote Desktop Gateway’s capabilities. Contact your network administrator for assistance.
50331685 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server and this computer are incompatible. Contact your network administrator for assistance.
50331686 Your computer can’t connect to the remote computer because the credentials used are not valid. Insert a valid smart card and type a PIN or password, and then try connecting again.
50331687 Your computer can’t connect to the remote computer because your computer or device did not pass the Network Access Protection requirements set by your network administrator. Contact your network administrator for assistance.
50331688 Your computer can’t connect to the remote computer because no certificate was configured to use at the Remote Desktop Gateway server. Contact your network administrator for assistance.
50331689 Your computer can’t connect to the remote computer because the RD Gateway server that you are trying to connect to is not allowed by your computer administrator. If you are the administrator, add this Remote Desktop Gateway server name to the trusted Remote Desktop Gateway server list on your computer and then try connecting again.
50331690 Your computer can’t connect to the remote computer because your computer or device did not meet the Network Access Protection requirements set by your network administrator, for one of the following reasons: 1) The Remote Desktop Gateway server name and the server’s public key certificate subject name do not match. 2) The certificate has expired or has been revoked. 3) The certificate root authority does not trust the certificate. 4) The certificate key extension does not support encryption. 5) Your computer cannot verify the certificate revocation list. Contact your network administrator for assistance.
50331691 Your computer can’t connect to the remote computer because a user name and password are required to authenticate to the Remote Desktop Gateway server instead of smart card credentials.
50331692 Your computer can’t connect to the remote computer because smart card credentials are required to authenticate to the Remote Desktop Gateway server instead of a user name and password.
50331693 Your computer can’t connect to the remote computer because no smart card reader is detected. Connect a smart card reader and then try again, or contact your network administrator for assistance.
50331695 Your computer can’t connect to the remote computer because authentication to the firewall failed due to missing firewall credentials. To resolve the issue, go to the firewall website that your network administrator recommends, and then try the connection again, or contact your network administrator for assistance.
50331696 Your computer can’t connect to the remote computer because authentication to the firewall failed due to invalid firewall credentials. To resolve the issue, go to the firewall website that your network administrator recommends, and then try the connection again, or contact your network administrator for assistance.
50331698 Your Remote Desktop Services session ended because the remote computer didn’t receive any input from you.
50331699 The connection has been disconnected because the session timeout limit was reached.
50331700 Your computer can’t connect to the remote computer because an invalid cookie was sent to the Remote Desktop Gateway server. Contact your network administrator for assistance.
50331701 Your computer can’t connect to the remote computer because the cookie was rejected by the Remote Desktop Gateway server. Contact your network administrator for assistance.
50331703 Your computer can’t connect to the remote computer because the Remote Desktop Gateway server is expecting an authentication method different from the one attempted. Contact your network administrator for assistance.
50331704 The RD Gateway connection ended because periodic user authentication failed. Try reconnecting with a correct user name and password. If the reconnection fails, contact your network administrator for further assistance.
50331705 The RD Gateway connection ended because periodic user authorization failed. Try reconnecting with a correct user name and password. If the reconnection fails, contact your network administrator for further assistance.
50331707 Your computer can’t connect to the remote computer because the Remote Desktop Gateway and the remote computer are unable to exchange policies. This could happen due to one of the following reasons: 1. The remote computer is not capable of exchanging policies with the Remote Desktop Gateway. 2. The remote computer’s configuration does not permit a new connection. 3. The connection between the Remote Desktop Gateway and the remote computer ended. Contact your network administrator for assistance.
50331708 Your computer can’t connect to the remote computer, possibly because the smart card is not valid, the smart card certificate was not found in the certificate store, or the Certificate Propagation service is not running. Contact your network administrator for assistance.
50331709 To use this program or computer, first log on to the following website: <a href=»»></a>.
50331710 To use this program or computer, you must first log on to an authentication website. Contact your network administrator for assistance.
50331711 Your session has ended. To continue using the program or computer, first log on to the following website: <a href=»»></a>.
50331712 Your session has ended. To continue using the program or computer, you must first log on to an authentication website. Contact your network administrator for assistance.
50331713 The RD Gateway connection ended because periodic user authorization failed. Your computer or device didn’t pass the Network Access Protection (NAP) requirements set by your network administrator. Contact your network administrator for assistance.
50331714 Your computer can’t connect to the remote computer because the size of the cookie exceeded the supported size. Contact your network administrator for assistance.
50331716 Your computer can’t connect to the remote computer using the specified forward proxy configuration. Contact your network administrator for assistance.
50331717 This computer cannot connect to the remote resource because you do not have permission to this resource. Contact your network administrator for assistance.
50331718 There are currently no resources available to connect to. Retry the connection or contact your network administrator.
50331719 An error occurred while Remote Desktop Connection was accessing this resource. Retry the connection or contact your system administrator.
50331721 Your Remote Desktop Client needs to be updated to the newest version. Contact your system administrator for help installing the update, and then try again.
50331722 Your network configuration doesn’t allow the necessary HTTPS ports. Contact your network administrator for help allowing those ports or disabling the web proxy, and then try connecting again.
50331723 We’re setting up more resources, and it might take a few minutes. Please try again later.
50331724 The user name you entered does not match the user name used to subscribe to your applications. If you wish to sign in as a different user please choose Sign Out from the Home menu.
50331725 Looks like there are too many users trying out the Azure RemoteApp service at the moment. Please wait a few minutes and then try again.
50331726 Maximum user limit has been reached. Please contact your administrator for further assistance.
50331727 Your trial period for Azure RemoteApp has expired. Ask your admin or tech support for help.
50331728 You no longer have access to Azure RemoteApp. Ask your admin or tech support for help.
Источник

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