I am trying to install a Linksys Cisco WRT120N router. My desktop is running XP and my laptop is running windows 7. When connecting the laptop to the new router everything works fine. When I connect the desktop to the router the the desktop cannot see the new router. I am replacing a Linksys Fast Ethernet/DSL Router with the new one which has wireless capablity. Cisco chat sessions have been entirely useless. When I hook my desktop directly to the modem it works fine.