Can you use your browser? HOW? It makes a "outgoing" connection to who knows where, so if it works, have your client do the same thing.
8080 - 80 - 9999 - 5555 WHO CARES? your browser may use 5000, 3000, 2000 1050 5674 7543 who knows what on your end so figure out what your browser does. 6346 is for incoming connections, you don't need it open! You will be able to share also via push requests.