What should I do if I cannot use the Wi-Fi(R) (Wireless LAN) function?

• Enable the Wi-Fi function.
  Open the charms [Details] and select the Settings charm.
  Select Change PC settings in the lower right corner, and select Wireless in the left pane.
  Turn off Airplane mode and change the Wi-Fi setting under Wireless devices to On.

• To use the Wi-Fi function on your VAIO computer, you need to configure the Wi-Fi settings.
  Check the Wi-Fi settings of the computer. [Details]

• Make sure the wireless device is enabled in the BIOS setup screen. If Disabled is selected for the wireless device in the BIOS setup screen, you cannot use the wireless function. In such a case, select Enable. [Details]

• If a connection utility app supplied with a third-party Wi-Fi product is installed, uninstall it.
  If a connection utility app is installed, Windows may fail to configure the Wi-Fi settings. Be sure to take a note of your settings, (such as security keys) before uninstalling.