Adtran web-based configuration interface allows you to change Wi-Fi password, Network Name (SSID), and default router settings at http://192.168.1.1.
How to login to Adtran router?
- Open a browser and type http://192.168.1.1 in the address bar.
 - Enter the Username: admin and Password: admin and click Sign In.

 - You will be logged in to the Adtran router settings.
 
How to change Adtran Wi-Fi Password and Network Name?
- Log in to the router’s settings.
 - Select WiFi > General > Wireless.
 - Click Edit next to the 5GHz or 2.4Gz Wireless Interfaces.

 - Enter the Wi-Fi Network Name in the WiFi Network Name (SSID) field.

 - Enter the Wi-Fi Password in the Wi-Fi Key (Password) field.
 - Click Apply.