WEP not recognizing key

Archived from groups: microsoft.public.broadbandnet.hardware (More info?)

I have a 700 access point a laptop with a 720 and a
desktop with a 730. I have the access point with a 64
bit WEP. I plugged the key into the laptop and connected
fine. I put it into the desktop and it says it's the
wrong key. I have even tried no security the laptop
connects fine, but the desktop keeps saying incorrect
key, even though in the list it says none for security.
Anybody know what I am doing wrong?