i opened ports listed on xbox website so my nat is open on my router. now that its open i have been finding people to play with but half of them it fails to load there stats when im sitting in my lobby area and wont let me join with them to play. why cant halo and MS work together find a cure and fix all these crappy issues? what can i do to fix this or is it a problem on my friends end? it doesnt happen with all of them and it tells me my nat is open...only the people i want to play with haha dumb luck