Originally Posted by Dave-ROR
Same thing I was going to post...
I assume this is 802.11b? or g? which channel are you using? there are only 3 that don't overlap so I'd try one of those three (1, 6 and 11 IIRC).
The other thing I would recommend is that you make sure you have the latest drivers for the card on the PC (desktop). The final version of the 802.11g protocol weren't finalized until this last summer. I saw a similar behavior on my laptop when I tried to connect to my access point (which had the "final" protocol version). Updating the driver on the card fixed this.
Give it a try, go an pull down the latest drivers from the Netgear site and install them on your PC.