A few days ago my TL-WPA4220 extender started beeping. It worked fine for a few months, but now it is just beeping in a high tone and rebooting after a few seconds. I'll connect with the wifi/lan, but a few seconds later it's off and I can't use it. The reset button or the pair button aren't even doing anything because like I said it is turning off after a few seconds.
The main part, which is connected with the router works fine, but the extender is broken in a way.
I removed it also from the plug and let it cool down for 12h+, but it is still doing the same things.
I hope someone had the same issue and can help me.