Hi,

Our lync 2010 can't expand contact group and new lync user can't find anyone, I checked event log, there are a lot of same event ID 4096:

An unhandled exception was encountered in WebTicketService service.

Exception Details. System.Security.Cryptography.CryptographicException: Invalid provider type specified.

   at Microsoft.Rtc.Internal.WebServicesAuthFramework.AuthUtitlities.FindAndValidateTokenTransferCert(String certSN, String certIssuer)
   at Microsoft.Rtc.Internal.WebServicesAuthFramework.WebTicketKeyStore.InitSigningCredentials()
   at Microsoft.Rtc.Internal.WebServicesAuthFramework.WebTicketKeyStore.GetSigningCredentials()
   at Microsoft.Rtc.Internal.WebTicketService.WebTicketService.GenerateSamlToken(OCSIdentity ocsId, String sipuriRenew, RequestSecurityToken rst, SecurityKeyIdentifier proofKeyIdentifier, EndpointAddress audienceAddress)
   at Microsoft.Rtc.Internal.WebTicketService.WebTicketService.DoIssueToken(Message rstMessage)
   at SyncInvokeIssueToken(Object , Object[] , Object[] )
   at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
   at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc& rpc)
   at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)
Cause: Application error. Please look through the exception details for more information.
Resolution:
Restart the server. If the problem persists contact product support.

I tried to restart and Invoke-CsManagementStoreReplication, still didn't work.

Hi Tim,

 

You may try to re-install the web components which will reset the IIS configurations .

1. Uninstall Lync Server Web Components.

2. Re-run Step 2 in Lync Server Deployment Wizard.

 

Best regards,

Eric

 

Hi Eric,

It's my fault, I assigned incorrect certificate, when I assigned computer certificate, the issue had been solved.

• Marked as answer by Tim, Xu 3 hours 37 minutes ago

Hi Eric,

It's my fault, I assigned incorrect certificate, when I assigned computer certificate, the issue had been solved.

• Marked as answer by Tim, Xu Wednesday, July 15, 2015 3:49 AM

Hi Eric,

It's my fault, I assigned incorrect certificate, when I assigned computer certificate, the issue had been solved.

• Marked as answer by Tim, Xu Wednesday, July 15, 2015 3:49 AM

Hi Eric,

It's my fault, I assigned incorrect certificate, when I assigned computer certificate, the issue had been solved.

• Marked as answer by Tim, Xu Wednesday, July 15, 2015 3:49 AM