There have been no recent firewall update. Just in case this was the issue I turned my firewall off and nothing changed. I have even run a crossover cable from one computer to the other and also no change.
I am able to join games on Ironclad online I don't see how it could be a port forwarding problem anyway on a LAN...
It doesn't matter what map I use it still happens. We tried the other computer and it starts the host and then i join fine but get disconnected as the game starts. Also my computer is faster so I think the game usually runs faster if I host...