Enabling/Disabling the Wireless Network Card
NOTE: If you are unable to connect to a wireless network, ensure that you have all the components for establishing a WLAN (see What You Need to Establish a WLAN Connection), and then verify that your wireless network card is enabled by pressing <Fn><F2>.
You can turn your computer's wireless networking function on and off by pressing the <Fn><F2> key combination. If the wireless networking function is turned on, press <Fn><F2> to disable it. If the wireless networking function is turned off, press <Fn><F2> to enable it.