Maybe its becausethe new updates of new lync server ( 2013 ) but sometimes it success to connect to UserEndpoint
and sometimes not.
Microsoft.Rtc.Signaling.RegisterException was caught
Message=The operation failed after several attempts.
Source=Microsoft.Rtc.Collaboration
DetectionStackTrace= at System.Environment.GetStackTrace(Exception e, Boolean needFileInfo)
at System.Environment.get_StackTrace()
at Microsoft.Rtc.Signaling.RealTimeException..ctor(String message, Exception innerException)
at Microsoft.Rtc.Signaling.FailureResponseException..ctor(String message, Exception innerException, SipResponseData responseData)
at Microsoft.Rtc.Signaling.Helper.CreateExceptionByType(String message, SipResponseData responseData, Exception innerException, Type exceptionType)
at Microsoft.Rtc.Signaling.SipTransactionAsyncResult`1.CheckForTooManyTransactions()
at Microsoft.Rtc.Signaling.SipTransactionAsyncResult`1.ProcessCore()
at Microsoft.Rtc.Signaling.SipTransactionAsyncResult`1.ProcessAuthenticationRequiredResponse(SipResponse response)
at Microsoft.Rtc.Signaling.SipTransactionAsyncResult`1.Transaction_ResponseReceived(Object sender, ResponseReceivedEventArgs e)
at Microsoft.Rtc.Internal.Sip.OutgoingNonInviteTransaction.OnResponseReceived(EventArgs e)
at Microsoft.Rtc.Internal.Sip.DispatchEventWorkitem.Execute()
at Microsoft.Rtc.Internal.Sip.SingleThreadedDispatcherQueue.DispatcherCallback(Object queue)
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallbackInternal(_ThreadPoolWaitCallback tpWaitCallBack)
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback(Object state)
StackTrace:
at Microsoft.Rtc.Signaling.SipAsyncResult`1.ThrowIfFailed()
at Microsoft.Rtc.Signaling.Helper.EndAsyncOperation[T](Object owner, IAsyncResult result)
at Microsoft.Rtc.Collaboration.LocalEndpoint.EndEstablish(IAsyncResult result)
at LyncTester.UCMA.UserEndpointStarter.OnUserEndpointEstablishCompleted(IAsyncResult result) in C:\Users\adam\Documents\Visual Studio 2010\Projects\LyncTester\LyncTester\UCMA\UserEndpointStarter.cs:line 112
InnerException:
In the Lync logs I see :
SIP/2.0 401 Unauthorized
Failed to validate user credentials
Why?