@Woozle, It was being more than one and half years using this Router. Model Number- TP-Link_6B13_5G, Archer C6U (EU) version 1.0 And, yes, I'm using the original power adapter.

Whenever starting the router, it is on, & redirected to rebooting, after that the power light stand still for next rebooting and continuously it is going on. No connectivity, not even loading the...