Hi we are working on it.

Dear User hope below steps can help u:

For Huawei ONTs with Wi-Fi functions, such as HG8240, HG8245, HG8045, HG8247H and HG8247, perform the following steps to change the Wi-Fi SSID and password:

1. In most cases, the default user name for logging in to the web page is root, the password is admin and the IP address is 192.168.100.1. However, for security reasons, the default password or IP address may have been changed before delivery. The nameplate prevails. Enter the IP address in the address bar of your browser.

2. Enter the default login account and password on the nameplate on the rear of the ONT and click Login.

3. Click the Advanced Configuration > WLAN tab and choose WLAN Basic Configuration from the navigation tree on the left. In the right pane, configure the basic parameters of the Wi-Fi network and modify the Wi-Fi SSID and password in the text boxes marked in red in the following figure.
4. Click Apply.

Username and password for logging in to the web interface:
For the initial username and password for logging in to the web interface of a Huawei ONT, see the device nameplate. You are advised not to change the username and password.

Thanks!

Dear friend!

For more details, see the following link:

How to Get and Change Your Wifi Password

Thank you!

Dear friend,

As far as I know, the HG8040 does not support WiFi. recommends that you connect a home router to the HG8040 ONT, and the router provides WiFi service.You can set the SSID, account, and password on the home router.

Thanks