I'm really stuck with this. I recently got an XBox 360 Elite, which initially came up with a Moderate NAT setting. Even though I had set the 88 UDP and 3074 TCP/UDP port forwarding on Port Forwarding range, it didn't work. I then set it up in the Single Port Forwarding and the NAT came up as open. This may have been conindence, or I may have typed something wrong in, I'm not 100% sure. Anyway it was open. This was about 1 month ago. I've just got Halo 3 and have gone back online to play some games and it's back as Moderate NAT again. I really don't understand what has happened, as all the settings are the same. I've messed about with fixed IP addresses, DHCP addresses, etc etc and still it's set as moderate. I've upgraded to the latest frimware 1.01.11 and no change. Everything is setup as recommended as far as I can see. Can anyone suggest anything?