Trouble with the Wireless Network Adapter - Help Please!

So I just bought the 360 Wireless Network Adapter, and all is not well. I've plugged it into the back of the system, but it never connects. I've gone to Edit Network Settings and the Wireless Settings section is all greyed out. I can't get it to work. The Test Xbox Live connection always fails in the test, and I just can't seem to get that area un-greyed.

Any help would be greatly appreciated.

Hi,

I have the exact same problem. I have contact the xbox 360 customer service and they told me that the device is faulty. I could send it in to microsoft and wait a month the get it back but instead I will try to return it to the store today. I will let you know if my new device work.

this might help

http://www.noddegamra.co.uk/problems-with-xbox-360-live-nat-settings/3/