If you take a look around, (internet search) you'll see there are significant issues with this card & Vista. Intel, from Vista RTM, has failed to provide solid drivers that are stable.The Ver 10.x drivers intermittently drop the connection forcing a hard reset of the adapter using the notebooks physical switch.The Ver 11.x drivers are even worse. The only way to recover is to reboot the system.Just google "intel 3945abg dhcp vista" or similar and you'll see. This is not a Vista problem, or a router problem. It's Intel. I have the same card in Dell & Toshiba notebooks and they all have the exact same issue.