Error Connecting to WSUS Server


  • We have a 2008 R2 server that also serves as our WSUS server. When I open WSUS, it comes up with the following message:

    Error: Connection Error

    An error occured trying to conect the WSUS server. This error can happen for a number of reasons. Check connectivity with the server.

    I copied the error to the clipboard and have posted it below. I've tried rebooting but that didn't fix it. Other ideas?


    The WSUS administration console was unable to connect to the WSUS Server via the remote API. 

    Verify that the Update Services service, IIS and SQL are running on the server. If the problem persists, try restarting IIS, SQL, and the Update Services Service.

    The WSUS administration console has encountered an unexpected error. This may be a transient error; try restarting the administration console. If this error persists, 

    Try removing the persisted preferences for the console by deleting the wsus file under %appdata%\Microsoft\MMC\.

    System.IO.IOException -- The handshake failed due to an unexpected packet format.


    Stack Trace:
       at System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest)
       at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
       at System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest)
       at System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult)
       at System.Threading.ExecutionContext.runTryCode(Object userData)
       at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Net.TlsStream.ProcessAuthentication(LazyAsyncResult result)
       at System.Net.TlsStream.Write(Byte[] buffer, Int32 offset, Int32 size)
       at System.Net.PooledStream.Write(Byte[] buffer, Int32 offset, Int32 size)
       at System.Net.ConnectStream.WriteHeaders(Boolean async)
    ** this exception was nested inside of the following exception **

    System.Net.WebException -- The underlying connection was closed: An unexpected error occurred on a send.


    Stack Trace:
       at Microsoft.UpdateServices.Administration.AdminProxy.CreateUpdateServer(Object[] args)
       at Microsoft.UpdateServices.Administration.AdminProxy.GetUpdateServer(String serverName, Boolean useSecureConnection, Int32 portNumber)
       at Microsoft.UpdateServices.UI.AdminApiAccess.AdminApiTools.GetUpdateServer(String serverName, Boolean useSecureConnection, Int32 portNumber)
       at Microsoft.UpdateServices.UI.SnapIn.Scope.ServerSummaryScopeNode.GetUpdateServer(PersistedServerSettings settings)
       at Microsoft.UpdateServices.UI.SnapIn.Scope.ServerSummaryScopeNode.ConnectToServer()
       at Microsoft.UpdateServices.UI.SnapIn.Scope.ServerSummaryScopeNode.ConnectToServerAndPopulateNode(Boolean connectingServerToConsole)
       at Microsoft.UpdateServices.UI.SnapIn.Scope.ServerSummaryScopeNode.OnExpandFromLoad(SyncStatus status)

    Wednesday, July 24, 2013 3:03 PM