my brother and i each have an xbox 360 in our room. the new xbox 360 S to be exact. on his xbox he has open NAT perfectly and on mine it is on moderate. sometimes i ask my brother to fix my xbox to have open NAT too and he does it and then me and him have open NAT on our xbox's. but in a few days or so, i go back to a moderate NAT and im thinking "what?!?!?". i dont wanna keep bugging my brother to fix the NAT on xbox to have open, and im asking for help on how to get open NAT for 2 xbox 360s, my brother has done it before so it isnt impossible. btw, we have a linksys router.