Re: Wireless Card not connect to Router!
If you are able to locate and connect to other routers I would guess your router is for some reason not broadcasting. As mentioned above turn off your router and back on again. If you know the routers network name you could also type it in manually and select connect even if the router is not broadcasting.
* Dell OptiPlex GX279, Pentium 4 - 2.8GHZ Hyper-Threaded
150G drive, 500G external drive, 1.5GB Ram, XP Professional
* Dell Dimension 2400, Pentium 4 - 2.56GHZ
40G drive, 1.5GB RAM, Windows Server 2003 R2