How to solve “The ChannelDispatcher is unable to open its IChannelListener” error?

Question

I\'m trying to communicate between WCF hosted in Windows Service and my service GUI. The problem is when I\'m trying to execute OperationContract method I\'m getting

Answer 1

There should be a host.Close() call before calling the service again. Therefore use try, catch and finally block. Close the connection in finally before making second call.