Atheros AR5007 802.11b/g wireless and WNDR3700 wireless problem

Purchased a new Netgear WNDR3700 to replace a Cisco router that kept dropping wireless devices. At this point in time everything except one HP laptop seems to connect fine to the new router (2 wireless xbox360s,2 hardlined xbox360s, 3 hardlined PCs, and 2 wireless laptops). The HP laptop has the Atheros AR5007 802.11b/g WiFi Adaptor which says all the drivers have are up to date. The laptop will work if hardlined to the router but will not get internet when attempting to connect wirelessly.
http://forum1.netgear.com/showthread.php?t=53551
Tried to follow the above forum with no success. Forum itself has no solution but some of the writer's suggestions were tried and like I said, no success.

When you checked for updated drivers, was it through Device Manager?

If si it is not the preferred method. The only site checked when doing it in this manner is Microsoft.

You do not say the operating system but I would suggest going HERE. Entering the requested information and checking for an updated driver. This will give you the best chance of success should it be a driver issue.