Problems with LinkSys WGA11B

A few days ago I bought a WGA11B wireless 11B network adapter for my
XBox. Got it running just fine (I was able to connect via FTP, play
videos off of another PC and so on) Set up included WEP 64 bit
encryption and MAC filtering. It's connecting via a LinkSys BEWF11S4
wireless router.

This morning I turn on the XBox, and I notice I'm no longer connected
to my wireless router.

I've gone and reset the router (a few times) and the WGA11B, but it
still refuses to connect. I've even gone as far as disabling any and
all security, just as a test, but it will not connected. I know it's
not the router though, as other WiFi devices (two laptops and a PDA)
can connect to it just fine. I've also tried the WGA11B on a few
different computers, just to make sure the XBox wasn't the problem.
(It's not.) I've also triple checked the security settings on the
WGA11B, everything's a match (SSID, WEP key and so on)

Any thoughts on this? It's only a few days old, but I'm ready to throw
the thing out the window (or return it if I can find the receipt..) I'm
at a loss of what else to try but if anyone's any ideas, I'm listening.


Thanks

You may wish to investigate the Linksys Knowledge Base:

http://kb.linksys.com/

Sincerely,

Brad Reese
BradReese.Com® Cisco Resource Center
Toll Free: 877-549-2680
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Website: http://www.BradReese.Com