Hp/Compaq is extending the warranty on many laptop systems that are having wireless and other issues. Apparently, HP is aware of an issue that causes the wireless devices to fail in some of their laptops. I have experienced this first hand with a Compaq Presario v6000. The wireless card was not connecting at all and always showed an amber light for the wireless card. I tried replacing the wireless card to no effect. After contacting HP, they explained that this is a known issue that is related to motherboard failure. It seems to be related to an overheating issue that damages the mainboard. Symptons include the amber light issue and Windows device manager not detecting the wireless card. Replacing the motherboard is the only fix.

If you are experiencing any of these issues, contact HP immediately. They should extend the warranty and fix the issue, free of charge.