Problem found with wireless adapter or access point using Netgear

I recently purchased a new HP laptop with Windows 7. When attempting to connect to the internet wirelessly, through my Netgear wndr3300 router, I get the message, "Problem found with wireless adapter or access point. Reset your wireless network adapter".
How does one reset the adapter?
I might add, my old laptop with Vista is connecting just fine with this router. My son downloaded "something" from the internet onto the Windows 7 laptop and I was able to connect to the internet with that Windows 7 laptop, but then couldn't with the Vista laptop.
I reinstalled Netgear on Vista and now I get the above message when trying to use Windows 7 laptop. Last weekend I was able to achieve an internet connection at a hotel using the Windows 7 laptop and I did not change anything to do this.
Will I ever be able to use both laptops at the same time with this router? Please help, but I need very specific instructions!
