I am having a problem of being able to join one person's party. We can not connect to each other what so ever. The only way we can is if we have a different host but we don't do that often. It's not a Modern Warfare 3 problem but it is all my online playable games. We can't join each other's party and we can't join each other's game. We both used all the solutions on the problem page but none of them worked at all. We just want to get this problem fixed and done as soon as we can. Help.