Hard reset TP-LINK TL-WR702N

Factory reset (Hard reset) Power ON the router. The reset button hole is located on the bottom of the device. Use a thin object like a pin to press inside and hold for about 5-6 seconds. Release and wait about 1 minute for the router to reboot and go back to the factory defaults.
Firmware Firmware link
Default username admin
Default password admin
Default IP address