Question

I have a Client and Server scenario, where a service is installed on the client and another service on the server. I have no issues when these are installed on different machines. However, I would like to also be able to install both the Client service and Server service on the same machine. I could set them up to use different ports, however I would like to accomplish this using a single port.

I have enabled and started the Net.Tcp Port Sharing Service Windows service. I start up the Server service first. When I attempt to start the Client service I get the following exception upon executing serviceHost.Open():

The TransportManager failed to listen on the supplied URI using the NetTcpPortSharing service: the URI is already registered with the service.

Below is the source code. Both Server and Client use different end point addresses as follows:

Server Service:

ServiceHost serviceHost = new ServiceHost(typeof(ServerService),
    new Uri("net.tcp://localhost:50000");
NetTcpBinding binding = new NetTcpBinding();
serviceHost.AddServiceEndpoint(typeof(IServerService), 
    binding, "ServerService");
serviceHost.Open();

Client Service:

ServiceHost serviceHost = new ServiceHost(typeof(ClientService),
    new Uri("net.tcp://localhost:50000");
NetTcpBinding binding = new NetTcpBinding();
serviceHost.AddServiceEndpoint(typeof(IClientService),
    binding, "ClientService");
serviceHost.Open();

Answer 1

I just resolved it making the base Uri’s different during instantiation of the ServiceHost. Revised code follows:

Server

ServiceHost serviceHost = new ServiceHost(typeof(ServerService),
    new Uri("net.tcp://localhost:50000/Server");
...

Client

ServiceHost serviceHost = new ServiceHost(typeof(ClientService),
    new Uri("net.tcp://localhost:50000/Client");
...