I used to have the old Arcade xbox 360 and I used the wireless network adapter for it. Everything was perfect. No problems at all. I got a new Xbox (black) and it has the built in wireless. I have the same internet, modem, router, everything is exactly the same. The xbox is literally sitting in the exact same spot. I get connection interrupted in every game I play. I get it in CoD around 2-3 times a game and 99% of the time, it causes me to die. I get it in Halo 4 and it just blackscreens for like 30 seconds for me. I notice it while just talking in party chat with people. I won't be able to hear the for a few seconds and they say my mic is lagging. I honestly don't play xbox very often because of this problem. It drives me crazy.