Java + flash multiplayer game

Heloo,

I have a multiplayer game in flash and i use flash server and socket for that.

When one user is connect to game is conected via some random port.

I have some player who can`t play the game because has all port bloched (except some port like 80/1024/5040).

All port is block by the proxy server, all users is outgoing to internet via that proxy, and has a local IP address (like 10.0.0.xx).

I am sure, is an solution for that because i found one game similar with my game and all work ok for this “problem usser”. I search on the web but i not found any solution.

Can someone help me?

Sorry for my english …

Thank you in advance.

Lucian