My tp-link range extender suddenly stopped working. I configured it with my dual channel Wifi and it used to work for 1 year, but suddenly now it goes into inactive state(all LEDs turned off).

I initially thought it is a socket issue, but no, every time turn it on, first all LEDs are on for fraction of a second and then power LED blinks for couple of seconds and then turns off, then neigher the device appears as an access point or there is nothing I can do to make it respond. Even if I press power button or even the reset button it still stays inactive, does not even respond. I can only disconnect power and then turning on power makes the same process repeat again. I cannot reset it, also cannot reconfigure it using the mobile app as it does not even stay on.

Any help is appreciated.