http://donmueangairportthai.com/en/875-aot-free-wifi-by-true 

AOT Free WiFi By True

Registration & Usage

How to sign up and log in to AOT Free WiFi by TrueMove H

• Enable wireless network connection. Select the following network (SSID): “.@ AirportTrueFreeWiFi”.
• Open your browser to automatically access the log in page.
• Please Select Language.
  
  
   
• Please fill in your information , and then click “Register Free”.
  
  
  
   
• The username and password will be automatically created.
  
  
   
• Click "Connect" to enjoy Free WiFi
• Now you can enjoy the free WiFi. Please note that the username & password will be valid for 2 hours /day