Trying to play a friend H2H. Both up to date at 2.02, both using W7. Chose TCP/IP option, he hosted. I entered his IP address, but after a short search I get a message that it can't find him. Both of us gave EF as a firewall exception.
I believe you might need a VPN to play over WAN network. LAN setup works as is. I have personally ever tried this though, so perhaps others can chip in as well...
Resolve then, that on this very ground, with small flags waving and tinny blasts on tiny trumpets, we shall meet the enemy, and not only may he be ours, he may be us. --Walt Kelly