3.In the section of Interface Configuration, in the tab General Setup, you can edit the name of Wi-Fi hotspot on the field ESSID.
Click the tab of Wireless Security to enter the encryption section and configure the Wi-Fi password.
PS: Encryption selects an encryption method.
Recommend to choose: WPA-PSK/WPA2-PSK Mixed modem
Click the “Save & Apply” button on the bottom right corner. The router will restart the WiFi hotspot with the new configurations in 1-2 minutes.