I place my Asus AC68U at living room then connect my Tenda AC18 on 2nd floor hall via built-in-ready wall cat5E networking cable. Try to set the Tenda AC18 as AP mode but to no avail. There is no option to set AP mode, only wireless repeater. So decided to download international firmware US_AC18V1.0BR_V15.03.05.05_multi_TD01 without the Unifi support and succesfully set the AC18 as AP mode.
Why is it local firmware does not include along AP mode option?