Try the following solutions:

• Ensure that the ONT is powered on properly (the PWR LED indicator is solid green).
• If you use a wireless device, such as a smartphone, to configure the ONT:

Ensure that your smartphone has disabled mobile data and is connected to the Wi-Fi network of the ONT.

Clear the cache of the web browser or change a web browser and try again.

Use another smartphone and try again.

• If you use a wired device, such as a computer, to configure the ONT:

Ensure that your computer is connected to the ONT properly (the LAN LED indicator of the connected port lights up).

Ensure that your computer is set to Obtain an IP address automatically and obtain DNS server address automatically.

Use another computer and try again.

• Reset the ONT and try again.