A buddy that plays the game saw this, asked me to post here. This is an issue with your router setup and/or behavior. I've written a doc. that has troubleshooting info for these kinds of problems here. It is not for the faint of heart, but you will find your answers there. If you need help understanding it, PM me (though honestly I won't be checking that much) or hit me up on Steam (*much* more likely to get a response, I'm there nearly every day, same moniker as my forum name here.) Good luck - the game is pretty cool, and even more so with people playing in the same room. Rob