Only people on the LAN can connect, no one elsewhere can connect, it's not up right now, but i will try and host it, as said above, i believe it would be something to do with my firewall, and etc., odd thing is though L4D1/2's servers work for me (when i host it myself, for custom maps, etc.), i realize L4D1/2 are different games and technically more then likely a different engine itself (version) so it's not a huge comparison, i only mention it due to the fact that they run on the same "basic" engine, but i don't expect anything to come from that
My server IP is 71.227.129.11, i'll try and have it up for the next day and a half
guess it's not exactly the same as the OP, lol, sorry
Any typical settings i should set in the firewall? i could try putting my specific IP on DMZ, see if that helps, but i rather not have any of my computers on the DMZ for any extended period of time