Main Router/AP WiFi Network Name(SSID) - This is the WiFi network name of your existing wireless network. The range extender is going to extend this wireless network after successful configuration..
Main Router MAC Address(BSSID) - This is the MAC Address of your main router/AP the range extender is connecting to.
Fill in the WiFi Password of your Main Router/AP - Enter the WiFi password of the wireless network you selected in the previous page.
Range Extender WiFi Network Name(SSID) - If you copy it from your main router/AP, your range extender and your main router/AP will have the same WiFi network name. Otherwise, your range extender will have a different WiFi network name from your main router/AP.