@Kevin_Z The router reboots normally everytime. After that the led turns blue and it starts working fine again. 4 devices are making the router's system unstable?

@User0001 The router just randomly reboots out of nowhere. The LED turns orange before it's going to reboot. The problem was there with the original power adapter too. I've tried it with a different...

The router randomly reboots 2-3 times/day. I tried using different power adapter with the same output rating but it doesn't solve the issue.

@Kevin_Z There's no security patch update or anything like that?

Is there no update routine for TP-Link midrange routers? Last Firmware update was on February 2018.