My Xbox Live connection has a NAT setting of Strict and I'm trying to get it to Open to make the most of my subscription. I connect to the net with a BT Voyager 205 modem which feeds into a Airport Extreme Base Station (new version). The Xbox then connects to the wireless network with the Microsoft WiFi adapter. I've tried port forwarding ports 88 & 3074 which hasn't helped and setting up the Xbox with a static IP address and then setting it up as a DMZ which hasn't worked either. I've just worked out that my Modem has NAT functionality as well as the AEBS so I'm thinking that could be causing my problems. Has anyone got a similar set up to this? If so, what did you do to get around it?