Hard reset TP-Link TL-WR720N

Factory reset (Hard reset) Power ON the router. Locate the reset button on the back panel – it is labeled WPS/RESET. Press it and hold for at least 5-6 seconds. You should see the System LED blinking faster than usual. When this happens – release the button and wait the router to reboot to its factory default settings. 
PS. The System LED is the second one on the front panel and it looks like a small sun. 
Firmware Firmware link
Default username admin
Default password admin
Default IP address