Here is what is is happening.
I have one wireless network which has a WPA key, and my Xbox can connect to it perfectly.
We recently got another wireless network in the house, which also has a WPA key, but the Xbox refuses to connect to it.
I can coinnect to both networks on my computer, and I know the WPA passphrase is correct.
Can anyone shed any light on why one is fine and the other problematic?
I'm having to use the other network without protection at the moment and its not ideal, but at least the Xbox can connect to it.