I can't seem to invite a friend who has rage.
I can create a game, I can invite him, but when he gets the message on steam, it says:
"User is currently not playing on any game server."
Other forum posts have suggested that rage uses 27015, and 82 so I've opened them on my router AND I've allowed the "rage" application under the windows firewall.
Haven't had any luck yet.
Any ideas?