Getting rid of tcp channel error

I've a .Net client/server app in which am using tcp binding to communicate with the WCF service. If the client is idle for say about an hour or so and if it then re-invokes a method on the server, the client keeps throws following error:

System.ServiceModel.ProtocolException: This channel can no longer be used to send messages as the output session was auto-closed due to a server-initiated shutdown. Either disable auto-close by setting the DispatchRuntime.AutomaticInputSessionShutdown to false, or consider modifying the shutdown protocol with the remote server.

To get rid of this, I need to restart the client or the server as a quick fix.

For a longterm solution, am I supposed to use reliableSession in both client and server with timeout as say 20 hours?

client:

server:

Or do I need to use DuplexChannelFactory when creating a proxy at the client side?

var proxy = new DuplexChannelFactory(context,

"NetTcpBinding_ITestInterface").CreateChannel()

Or is there any other more efficient way of getting rid of this error?

 

Thanks.