Server stack trace:
在 System.ServiceModel.Channels.SocketConnectionInitiator.Connect(Uri uri, TimeSpan timeout)
在 System.ServiceModel.Channels.BufferedConnectionInitiator.Connect(Uri uri, TimeSpan timeout)
在 System.ServiceModel.Channels.ConnectionPoolHelper.EstablishConnection(TimeSpan timeout)
在 System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.OnOpen(TimeSpan timeout)
在 System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
在 System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan timeout)
在 System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
在 System.ServiceModel.Channels.ServiceChannel.CallOpenOnce.System.ServiceModel.Channels.ServiceChannel.ICallOnce.Call(ServiceChannel channel, TimeSpan timeout)
在 System.ServiceModel.Channels.ServiceChannel.CallOnceManager.CallOnce(TimeSpan timeout, CallOnceManager cascade)
在 System.ServiceModel.Channels.ServiceChannel.EnsureOpened(TimeSpan timeout)
在 System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
在 System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
在 System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
it seems the server do not work any more