Hello, friend!
The SSID may be changed. Therefore, the displayed SSID is different from the SSID displayed on the device nameplate.
You are advised to log in to the ONT web page.
1. Click the Advanced Configuration > WLAN tab, and choose 2.4G Basic Network Settings from the navigation tree on the left. In the right pane, configure the basic parameters of the 2.4G Wi-Fi network.

2. Click the Advanced Configuration > WLAN tab, and choose 5G Basic Network Settings from the navigation tree on the left. In the right pane, configure the basic parameters of the 5G Wi-Fi network.

Thanks!