I've been playing Ticket to Ride against my siblings each weekend with each of us on a different laptop with a different Steam account. This weekend though we have been having serious problems getting a game going. We seem to run into one of two main problems:
a) A player creates a game and one of the other players can't see the game when they select the join a game option.
b) The local game is visible to the other players but when one of them joins the game a few seconds later they get a message popup saying something like "Unexpected Error" in the title bar and "Disconnected from server" as the message.
I've tried restarting the game, Steam and the laptops to no avail. Turning off the firewall software hasn't helped either.