What should I do if I cannot use the wireless LAN function?

• Make sure each switch next to Wireless Functions and Wireless LAN (or Wi-Fi) is toggled to On in the VAIO Smart Network window.

• To use the wireless LAN function on your VAIO computer, you need to set up the function.
  Check the wireless LAN 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, change the BIOS setting. [Details]

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