Hey guys i'm having some serious issues with playing this game online. I managed to play one game in automatch but now whenever i try play another game i always lose connection to the online server.

If I go for a custom game the lobby doesn't populate. and eventually it tells me that I have lost connection.

I'm using an Imac desktop. and my net is connected through an airport.

I'm pretty sure it has something to do with security/firewall but i have allowed all incoming traffic so i dont know what else to do.