re: Xbox Live Issues?

Are y'all both on the same router? If so, that's the problem. I used to have two roommates and we would all play Xbox together on separate systems, and we would have the same problem. It's an IP issue created sometimes when multiple systems are on the same network. You can google the solution, there's a specific set of IP setting you have to designate and stuff. It's not easy, but it'll fix the problem