I want to play the updated Titan Quest with a friend, in Steam. How can I do that? Using Steam's "join game" or "invite to game" options only send me to the in-game list of multiplayer servers, and that list is completely unusable (can't search, can't scroll, can't sort). What can I do?
So, looks like it's a known issue being looked at.
Meanwhile, I found this workaround at the Steam forums:
Disconnected from wifi.
Selected friends game.
When the password screen came up, I reconnected and waiting a moment.
Put in password, joined game (also alt-tabbed to make sure my firewall wasnt clogging).