Anyone know how to use a pair of ports with wxSockets?

[David Mathews]

I'm trying to use a pair of ports since I have activity that is  
initiated from either one of my communicating programs.
All is working with a single port, but when I add a listener (server)  
for a different port, all the code for the original port fails.
(With a single port, I can't have both apps on the same machine as  
they can't both listen to the same port. But running a client on the  
server box is a requirement.)

Is there something special required to make this work, or is  
wxSockets not capable of handling two ports?
Any work around?

Thanks,
David