I have an Linksys WUSB54G v 4.0 USB wireless adapter hooked up to my desktop. The desktop is located upstairs and Linkys WRT54G v3.1 is located upstairs as well (just down the hall in another room). The connection to the internet worked very well 2 days ago. I mean everything was great, good speed, good throughput. All of sudden, I am connected to the router at 54Mpbs with the USB adapter, but can't get on the internet. Not sure what happend. I thought it wasn't seeing the router so I
made sure the IP address was seeing the router, and it is. Again its fully connected to the router but the internet is not. My laptop (which is wireless) is always getting excellent speed. It's just that desktop with the USB adapter hooked to it. Just not getting the internet anymore. It's crazy because im connected at very good speed, just connect to the internet. Any Ideas?

Setup:
Linksys WRT54G v3.1(upstairs)
Linksys WUSB54G v4.0(upstairs)
Can get connection to the internet from all other computers in the house but just not the one with the USB adapter. Its connected at 54Mbps but no web.