Hi all, ive been having a problem staying connected to xbox live. i get disconnected every 5-10 minutes, ive tried buying a better router, hooking up an ethernet cord, opening the ports, even DMZing my xbox! my NAT is open, i have full bars in all games, but i still cannot play a single match of anything without being dc'd! at this point im considering it's a problem with my xbox, can anyone help me please!?