Thanks for the insight, guess now it's time to go see if this old mule can still beat his kids

So I got Mule working by setting up the portforwarding in my router and at the same time got my son interested in the game. Now how do I set up mule so that we both can play at the same time. Seems I can only play it from one pc at the time, and it forces me to change the portforwarding setting according to what PC mule is played on.

Any ideas how to fix this??