I know people have been having problems with their wifi after installing Lion but has anyone had their wifi card die because of Lion? So my macbook pro has been fine up until recently when I decided to install Lion. It worked fine on the first day but the next day when I turned it on, it said wifi no hardware installed but my bluetooth is still working. I tried everything that was suggested, reset SMC, PRAM, pulled battery, restarted, turned off bluetooth , reinstall snow leopard but nothing worked. I booted up Windows 7 but my wifi was still not detected. I opened the laptop and the wifi connector is secured so I think my wifi card is dead.