1. Connect the network to Guang Mao and connect the other end to the computer. Then enter the address of Guang Mao ZTE F623 in the browser and see the information behind Guang Mao. Instead of logging in with a user account, log in with the password of the administrator account CMCCAdmin.

2. Enter the network → broadband settings → "Internet connection, create a new WAN connection, select PPPoE as the mode, select all ports, change the VLAN ID setting to 4 1, fill in the dial-up account and password, and save;

3. Click to view the created connection again, and INTERNET_R_VID_4 1 will appear. Note that the difference from the original bridge is r;

5. Then go to the status to see if the dial-up connection is successful. Obtain an external network address;

6. Set the SSID and password of WIFI according to the following path;

7. Restart Guang Mao, connect Guang Mao's WIFI with your mobile phone, and see if you can surf the Internet.