Major problem with Natfix. Router owners no longer can host, and it seems to be causeing some problems. Mainly, it dosn't allow hosting, AT ALL.
I can't even play myself anymore!!
What happens? You get the required 2 player minimum. Try to start, and what happens? Game exits. And the other player gets the "Host has stopped responding" message. This dosn't seem to effect single player, and I think it might be causing some of the random drops that some people seem to get now.