The following Error happen when opening the remote Runspace: System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. ---> 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

 This error appears if you have disabled TLS 1.0 & 1.1 on the server & client protocol on the machine.

Full error description is listed below under the image. Make sure your application is enforce to send communication via Tls1.2 protocol only.

Error description:

The following Error happen when opening the remote Runspace: System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. ---> 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.TlsStream.EndWrite(IAsyncResult asyncResult)

   at System.Net.ConnectStream.WriteHeadersCallback(IAsyncResult ar)

   --- End of inner exception stack trace ---

   at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)

   at System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)

   --- End of inner exception stack trace ---

   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()

   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

   at Microsoft.Identity.Core.Http.HttpManager.<ExecuteAsync>d__9.MoveNext() in D:\a\1\s\src\Microsoft.IdentityModel.Clients.ActiveDirectory\Core\Http\HttpManager.cs:line 235

--- 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.Identity.Core.Http.HttpManager.<ExecuteWithRetryAsync>d__8.MoveNext() in D:\a\1\s\src\Microsoft.IdentityModel.Clients.ActiveDirectory\Core\Http\HttpManager.cs:line 143

--- 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.Identity.Core.Http.HttpManager.<SendGetAsync>d__5.MoveNext() in D:\a\1\s\src\Microsoft.IdentityModel.Clients.ActiveDirectory\Core\Http\HttpManager.cs:line 85

--- 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.Identity.Core.OAuth2.OAuthClient.<ExecuteRequestAsync>d__23.MoveNext() in D:\a\1\s\src\Microsoft.IdentityModel.Clients.ActiveDirectory\Core\OAuth2\OAuthClient.cs:line 205

--- 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.Identity.Core.OAuth2.OAuthClient.<GetResponseAsync>d__18`1.MoveNext() in D:\a\1\s\src\Microsoft.IdentityModel.Clients.ActiveDirectory\Core\OAuth2\OAuthClient.cs:line 62

--- 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.Identity.Core.OAuth2.OAuthClient.<GetResponseAsync>d__17`1.MoveNext() in D:\a\1\s\src\Microsoft.IdentityModel.Clients.ActiveDirectory\Core\OAuth2\OAuthClient.cs:line 0

--- 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.IdentityModel.Clients.ActiveDirectory.InstanceDiscovery.<DiscoverAsync>d__14.MoveNext() in D:\a\1\s\src\Microsoft.IdentityModel.Clients.ActiveDirectory\Internal\Instance\InstanceDiscovery.cs:line 174

--- 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.IdentityModel.Clients.ActiveDirectory.InstanceDiscovery.<GetMetadataEntryAsync>d__10.MoveNext() in D:\a\1\s\src\Microsoft.IdentityModel.Clients.ActiveDirectory\Internal\Instance\InstanceDiscovery.cs:line 124

--- 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.IdentityModel.Clients.ActiveDirectory.Internal.Instance.Authenticator.<UpdateFromTemplateAsync>d__51.MoveNext() in D:\a\1\s\src\Microsoft.IdentityModel.Clients.ActiveDirectory\Internal\Instance\Authenticator.cs:line 117

--- 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.IdentityModel.Clients.ActiveDirectory.Internal.Flows.AcquireTokenHandlerBase.<PreRunAsync>d__67.MoveNext() in D:\a\1\s\src\Microsoft.IdentityModel.Clients.ActiveDirectory\Internal\Flows\AcquireTokenHandlerBase.cs:line 294

--- 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.IdentityModel.Clients.ActiveDirectory.Internal.Flows.AcquireTokenUsernamePasswordHandler.<PreRunAsync>d__4.MoveNext() in D:\a\1\s\src\Microsoft.IdentityModel.Clients.ActiveDirectory\Internal\Flows\NonInteractive\AcquireTokenUsernamePasswordHandler.cs:line 62

--- 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.IdentityModel.Clients.ActiveDirectory.Internal.Flows.AcquireTokenHandlerBase.<RunAsync>d__60.MoveNext() in D:\a\1\s\src\Microsoft.IdentityModel.Clients.ActiveDirectory\Internal\Flows\AcquireTokenHandlerBase.cs:line 241

--- 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.IdentityModel.Clients.ActiveDirectory.AuthenticationContext.<AcquireTokenCommonAsync>d__39.MoveNext() in D:\a\1\s\src\Microsoft.IdentityModel.Clients.ActiveDirectory\AuthenticationContext.cs:line 542

--- 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.IdentityModel.Clients.ActiveDirectory.AuthenticationContextIntegratedAuthExtensions.<AcquireTokenAsync>d__0.MoveNext() in D:\a\1\s\src\Microsoft.IdentityModel.Clients.ActiveDirectory\Features\WinCommon\AuthenticationContextIntegratedAuthExtensions.cs:line 59

--- 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.Online.Administration.Automation.CommonFiles.AuthManager.AuthenticateUser(AuthenticationContext ac, PSCredential cred) in X:\bt\1225946\repo\src\dev\PowerShell.V1\modules\psmodule\CommonFiles\AuthManager.cs:line 115

   at Microsoft.Online.Administration.Automation.ConnectMsolService.MsolCmdletProcessRecord() in X:\bt\1225946\repo\src\dev\PowerShell.V1\modules\psmodule\Cmdlets\Connect-Service.cs:line 247 | InnerException: System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. ---> 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.TlsStream.EndWrite(IAsyncResult asyncResult)

   at System.Net.ConnectStream.WriteHeadersCallback(IAsyncResult ar)

   --- End of inner exception stack trace ---

   at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)

   at System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)]