Hello, friend!
If you do not want to share Wi-Fi, you can log in to the ONT WebUI.
Click the Security tab, and choose WLAN MAC Filter Configuration from the navigation tree on the left. In the right pane, select Enable WAN MAC filter, set the filter mode, and click New. In the dialog box that is displayed, configure the SSID-based MAC address filter rule.
Parameters for wireless network MAC filtering
| Parameter | Description |
| Enable WLAN MAC filter | Enables or disables the WLAN MAC filter function. |
| Filter mode | Indicates the MAC filter mode. It can be set to Blacklist or Whitelist. The blacklist or whitelist mode is a global configuration. The two modes cannot be used at the same time. |
| SSID index | Indicates the SSID index of the WLAN for which MAC address filtering is configured. |
| Source MAC Address | Indicates the source MAC address in the MAC filter rules. |
For more information, please click: How to configure MAC Address Filtering on Huawei ONT
Alternatively, you can set Encryption Mode and WPS Mode on the WLAN to improve wireless network security.
Thanks!