i have networking router link

I have a AMD dual core 64bit computer, it has 2gig ram and 300g HD. The Video card and controller is a ATI Radon 200 Express. It has a Built in Realteck RTL8139/810X nic card. I also have a Linksys WRT54GS Router reset to defaults. Everything on the windows Vista seems to be ok. It installs the driver for the card and I can get into all the setting and configuration for the network card. With all the defaults on I get a link error. When the computer is booting I see that the card is Linked to the router. Once Windows get to its boot screen I loss the link to the router and you would be right windows think I have a connection problem to my router. Thanks

I have a AMD dual core 64bit computer, it has 2gig ram and 300g HD. The Video card and controller is a ATI Radon 200 Express. It has a Built in Realteck RTL8139/810X nic card. I also have a Linksys WRT54GS Router reset to defaults. Everything on the windows Vista seems to be ok. It installs the driver for the card and I can get into all the setting and configuration for the network card. With all the defaults on I get a link error. When the computer is booting I see that the card is Linked to the router. Once Windows get to its boot screen I loss the link to the router and you would be right windows think I have a connection problem to my router. Thanks