My brother and I share the same adress IP because we are behind a router, and the game doesn't like that : if one is playing, the other can't even get the server list, and if he get the server list or try to join a server, the other one freezes/crash.
Is there a way to solve this problem ? We played some other online game and there wasn't any problems, so I don't know why Tremulous doesn't like that

Thanks.