Huawei ONUs

Step 1:
Open a browser and go to 192.168.100.1
-Default Account and Passwords are:
Username: root
Password: admin / adminHW
Step 2:
-Go to WLAN then 2.4G or 5G Basic Network Settings. After changing the SSID Name and WPA PreSharedKey, click on Apply.

Fiberhome ONUs

Step 1:
Open a browser and go to 192.168.1.1
-Default Account and Passwords are:
Username: user1 / user2
Password: 12345 / user1234 / user12345
Step 2:
-Go to Interface Setup then Wireless. After changing the SSID and Pre-Shared Key, click on Save.

ZTE ONUs

Step 1:
Open a browser and go to 192.168.1.1
-Default Account and Passwords are:
Username: user
Password: user
Step 2:
-Go to Network then SSID settings, change the SSID name then click SUBMIT.
Step 3:
-Go to Network then Security, change the WPA Passphrase then click SUBMIT.