Xbox 360 and Airport Extreme problem

[nibuoy]

Hi everyone,
I used to have an old linksys router, and my xbox 360 worked perfectly with it via ethernet.
I recently bought an Airport extreme, but, my xbox cannot connect to live with it. I know that the internet works, but I can't seem to get live.

I have tried enabling NAT, portforwarding, and using a static IP, but nothing works.

In addition, the error messages on the xbox networking help changes almost everytime, from MTU settings, to DNS server problems, etc.

any suggestions?
thanks

 

[eibgrad]

Try putting the XBOX in the DMZ of the Airport Extreme.

 

[nibuoy]

Try putting the XBOX in the DMZ of the Airport Extreme.

thanks for the quick reply
how would I go about doing this?

Sorry, im a bit of a noob at networking