How to hard reset TP-Link wireless access points, extenders to factory defaults
Amazon.com: TP-Link AC750 WiFi Extender (RE220), Covers Up to 1200 Sq.ft and 20 Devices, Up to 750Mbps Dual Band WiFi Range Extender, WiFi Booster to Extend Range of WiFi Internet Connection :
How to Factory Reset a TP-Link RE450 WiFi Repeater - Support.com TechSolutions