System.Net.Sockets.SocketException from Hybrid Connection Manager connecting to Server 2012 R2

[tomaustin700]

Hi,
I'm trying to configure a hybrid connection to connect to a SQL Server which is running on Windows Server 2012 R2 and I'm running into issues, within event viewer on the server running Hybrid Connection Manager I am seeing the following exception:

HybridConnectionManager Trace: Microsoft.Azure.Relay.RelayException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.WebSockets.WebSocketException: An internal WebSocket error occurred. Please see the innerException, if present, for more details.  ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
   at System.Net.Sockets.Socket.EndReceive(IAsyncResult asyncResult)
   at System.Net.Sockets.NetworkStream.EndRead(IAsyncResult asyncResult)
   --- End of inner exception stack trace ---
   at System.Net.Security._SslStream.EndRead(IAsyncResult asyncResult)
   at System.Net.TlsStream.EndRead(IAsyncResult asyncResult)
   at System.Threading.Tasks.TaskFactory`1.FromAsyncTrimPromise`1.Complete(TInstance thisRef, Func`3 endMethod, IAsyncResult asyncResult, Boolean requiresSynchronization)
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Net.WebSockets.WebSocketConnectionStream.<ReadAsync>d__21.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Net.WebSockets.WebSocketBase.WebSocketOperation.<Process>d__19.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Net.WebSockets.WebSocketBase.<ReceiveAsyncCore>d__45.MoveNext()
   --- End of inner exception stack trace ---
   at System.Net.WebSockets.WebSocketBase.ThrowIfConvertibleException(String methodName, Exception exception, CancellationToken cancellationToken, Boolean aborted)
   at System.Net.WebSockets.WebSocketBase.<ReceiveAsyncCore>d__45.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Azure.Relay.WebSocketStream.<ReadAsync>d__27.MoveNext()
   --- End of inner exception stack trace ---
   at Microsoft.Azure.Relay.WebSocketStream.<ReadAsync>d__27.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.HybridConnectionManager.Util.<AsyncPipeStream>d__0.MoveNext().

I believe this is related to TLS 1.2 however I have used IIS Crypto to set TLS 1.2 on and the issue remains. I'm unsure where to go from here so any advice would be really appreciated. I have used Hybrid Connection Manager to setup a connection to a SQL Server running on Server 2019 and that works correctly so it does just seem like something on the Server 2012 R2 server needs a configuration change.

The Hybrid Connection Manager is running on Server 2016 Datacenter edition if it makes any difference.

Hope you can help,
Tom

[anuruddhasingh]

similar issue here as well.. any solution?pls let me know