I have a zyxel p-663 gateway. My Xbox is using Ethernet. I have tried opening the ports for the Xbox. I have tried setting the Xbox up as the dmz host. I have tried following the guides in the support forum. If i set the Xbox up with a static up it will not connect to live. I have it set to dhcp and logged into the router and set the ports to the ip adress assigned by the gateway. To test the gateway I set up port forwarding to my laptop and tested with the portforwarding websites program. I am able to verify that the gateway will open ports to my laptop but when I program it back to the Xbox ip and run the test I get open Nat in Xbox connection but moderate in call of duty. I am out of ideas any help would be appreciated. Also upnp doesn't change anything.