Make sure your NAT is set to Open. XBone will request the ports it needs open directly from your router. Test Network connection. After it's done testing and comes back with the results, IP Address etc etc, on that screen hold LT, RT, LB, and RB. Let it run it's course from there. NAT will show ....... It should eventually come back saying you're behind a Cone NAT. I haven't been DC'd at all the past 3 days. If it comes back saying you're behind a Strict NAT, rinse and repeat until it eventually says Cone.