I got myself a new computer and downloaded MW2, CSS and played it last night without any problems. However, when i attempted to play today I could not find any servers at all - I just keep "searching for more players" in mw2, and on CSS i cannot see any servers to join except under my "history" tab.

I have "allowed" them through my firewall, but it does not help.

Have anyone experienced similar problems, or know a possible solution to this problem?