Can´t syncronize updates with ssl

Hi,

since 2012-09-18 my WSUS server can´t synchronize any update. When i run wsusutil checkhealth i getthis in the logfile.

2012-10-18 12:41:33.211 UTC    Error    WsusService.10    SusService.ValidateServerCertificate    Find certificate problem. Error: RemoteCertificateChainErrors
   bei Microsoft.UpdateServices.EventSystem.SusService.ValidateServerCertificate(Object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
   bei System.Net.ServerCertValidationCallback.Callback(Object state)
   bei System.Threading.ExecutionContext.runTryCode(Object userData)
   bei System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
   bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   bei System.Net.ServerCertValidationCallback.Invoke(Object request, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
   bei System.Net.Security.SecureChannel.VerifyRemoteCertificate(RemoteCertValidationCallback remoteCertValidationCallback)
   bei System.Net.Security.SslState.CompleteHandshake()
   bei System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest)
   bei System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest)
   bei System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
   bei System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest)
   bei System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
   bei System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest)
   bei System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
   bei System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest)
   bei System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult)
   bei System.Threading.ExecutionContext.runTryCode(Object userData)
   bei System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
   bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   bei System.Net.TlsStream.ProcessAuthentication(LazyAsyncResult result)
   bei System.Net.TlsStream.Write(Byte[] buffer, Int32 offset, Int32 size)
   bei System.Net.PooledStream.Write(Byte[] buffer, Int32 offset, Int32 size)
   bei System.Net.ConnectStream.WriteHeaders(Boolean async)
   bei System.Net.HttpWebRequest.EndSubmitRequest()
   bei System.Net.Connection.CompleteConnection(Boolean async, HttpWebRequest request)
   bei System.Net.Connection.CompleteStartConnection(Boolean async, HttpWebRequest httpWebRequest)
   bei System.Net.Connection.CompleteStartRequest(Boolean onSubmitThread, HttpWebRequest request, TriState needReConnect)
   bei System.Net.Connection.SubmitRequest(HttpWebRequest request)
   bei System.Net.ServicePoint.SubmitRequest(HttpWebRequest request, String connName)
   bei System.Net.HttpWebRequest.SubmitRequest(ServicePoint servicePoint)
   bei System.Net.HttpWebRequest.GetResponse()
   bei Microsoft.UpdateServices.Internal.HealthMonitoring.HmtClients.CheckSelfUpdate(EventLoggingType type, HealthEventLogger logger)
   bei Microsoft.UpdateServices.Internal.HealthMonitoring.HealthMonitoringTasks.ExecuteSubtask(HealthMonitoringSubtask subtask, EventLoggingType type, HealthEventLogger logger)
   bei Microsoft.UpdateServices.Internal.HealthMonitoring.HmtClients.Execute(EventLoggingType type)
   bei Microsoft.UpdateServices.Internal.HealthMonitoring.HealthMonitoringTasks.Execute(EventLoggingType type)
   bei Microsoft.UpdateServices.Internal.HealthMonitoring.HealthMonitoringThreadManager.Execute(Boolean waitIfNecessary, EventLoggingType loggingType)
   bei Microsoft.UpdateServices.Internal.HealthMonitoring.RemotingChannel.PrivateLogEvents()
   bei System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs)
   bei System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg, Int32 methodPtr, Boolean fExecuteInContext)
   bei System.Runtime.Remoting.Messaging.ServerObjectTerminatorSink.SyncProcessMessage(IMessage reqMsg)
   bei System.Runtime.Remoting.Messaging.ServerContextTerminatorSink.SyncProcessMessage(IMessage reqMsg)
   bei System.Runtime.Remoting.Channels.CrossContextChannel.SyncProcessMessageCallback(Object[] args)
   bei System.Runtime.Remoting.Channels.ChannelServices.DispatchMessage(IServerChannelSinkStack sinkStack, IMessage msg, IMessage& replyMsg)
   bei System.Runtime.Remoting.Channels.SoapServerFormatterSink.ProcessMessage(IServerChannelSinkStack sinkStack, IMessage requestMsg, ITransportHeaders requestHeaders, Stream requestStream, IMessage& responseMsg, ITransportHeaders& responseHeaders, Stream& responseStream)
   bei System.Runtime.Remoting.Channels.BinaryServerFormatterSink.ProcessMessage(IServerChannelSinkStack sinkStack, IMessage requestMsg, ITransportHeaders requestHeaders, Stream requestStream, IMessage& responseMsg, ITransportHeaders& responseHeaders, Stream& responseStream)
   bei System.Runtime.Remoting.Channels.Ipc.IpcServerTransportSink.ServiceRequest(Object state)
   bei System.Runtime.Remoting.Channels.SocketHandler.ProcessRequestNow()
   bei System.Runtime.Remoting.Channels.SocketHandler.BeginReadMessageCallback(IAsyncResult ar)
   bei System.Runtime.Remoting.Channels.Ipc.IpcPort.AsyncFSCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOverlapped)
   bei System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)

All client can connt to the server and i can open the WSUS console, just the syncronization doesn´t work. In the eventlog i get the error: 13042,10022,10032,12002,12012,12022,12042,12052

I´m searching for this error many hours and can´t find a solution, can anyone help me please?

regards Stephan