You need to change the sport to 20710.
Edit: you might need both, because it seems to resolve to 20700 too. I am still having problems with the port 20700. Wireshark says it is unreachable for me.Resolving cod2master.activision.com
cod2master.activision.com resolved to 63.146.124.40:20710
[21:48] Mitch: hi
[21:48] Mitch: can you edit my post
[21:48] Mitch: http://killtube.org/showthread.php?1...ter-list/page8
[21:48] Mitch: and say that port 20700 is for player info (guid)
[21:49] Mitch: and 20710 is for reporting to the master server
[21:49] Mitch: aka heartbeat
[21:56] <This user is now offline>