Vizio CT14-A0 - Windows 8 Installation Guide - Manual (Page 7)

UPDATING DRIVERS
Updating the Wireless LAN Driver
It is recommended that you update the Wireless LAN driver
immediately after completing the Windows 8 Setup. Without this
driver you will not be able to use a wireless Internet connection.
1. At the Windows 8 Start screen press the Windows and X keys
on the keyboard. Select Device Manager from the menu.
Close up of menu:
2. You will see the Wireless LAN driver with a yellow exclamation
point next to it.
3. Right click on it and select Update Driver Software.