KLIA has free WiFi available at most seating and public areas in the passenger terminals so you can always stay connected.
There's no registration needed to use the WiFi. All you need to get connected is:
1. If you're using your mobile phone, disable your data service to avoid any roaming service fees
2. Select 'FREE_WIFI@KLIA'
3. Launch your browser to access the login page
4. Select the 'Click to surf' button
5. Enjoy KLIA's free WiFi!
Don't forget to disconnect your device from the WiFi network after use. For more information or support, you can ask at the Information Counter.
Please note that you can only stay on the WiFi for three hours at a time.