Xbox NAT issue.

[lovehatehero]

So, I've been running xbox live now since I've had it fine. NAT open and all good. Today it went to strict. Went back into my router and just reset settings and reopened the right ports made sure upnp was enable etc etc. Tried it out, NAT moderate but not back to open. I even DMZ'd my xbox's ip and still, moderate and not open. Any idea why or how i can fix it again?

[Cephius]

Make sure you're not port fowarding the ports that the xbox protocol uses to a different IP. If all else fails, delete all the entries in your port forward section and start over.

[Resulted]

try disabling UPnP