I've had this problem for a few months but never bothered to fix it. Felt the urge to play again and now I've can't seem to fix it. I get the error after you press "Accept" and it freezes at the part when it connects to the lobby. Says it can't connect then gives you the error. Pol said port forwarding was the answer but that's not working. Can anyone halp. No firewalls, anti-virus. anything, so it can't be that either.