MacBook Air not contacting Wi-Fi with NETGEAR Extender My MacBook Air is not connecting to Wi-Fi through NETGEAR Extender whilst all other device do, such as MacBook Pro, Apple TV and iPad.

I tried to:


Delete all Network configurations from System Preferences.
Reset SMC.
Reset PRAM.
Change channel on NETGEAR to channel 48.
Disable password access on NETGEAR.


MacBook Air OSX 10.8.5
13 inches
Ending 2010

Any help please?
Change the authentication method from WPA2 Personal to WPA or WEP. If the Air is older it may not be compatible.