To connect AirTouch 5 to Wifi
Open the Quick Menu and select Settings tab
Select Options tab and select Connect to Wifi
Select your network and input your password then select Done
To connect AirTouch 4 to Wifi
If you have AirTouch 4, you can jump straight to the required settings screen via the Quick Menu. This demonstration video shows you how.
To connect AirTouch 2 and 3 to Wifi
For more information click here