Originally Posted by Kramerika
Let me share my own experience. I have no router, but I do have a firewall (how can you not in this day and age). It does not block outgoing connections, but it does block incoming connections. The only incoming ports I have open for this game are:
UDP and TCP 3658
UDP and TCP 3659
UDP and TCP 27900
UDP and TCP 6500
I have a router and have been running a dedicated server for some time now with ONLY these ports opened.
Noone has a problem finding me through the game or gamespy.