I bought it a month ago, updated the firmware version and disabled the LEDs (no auto turn off/on) 

Every day after running for more than 10-12h (something around that) The extender stops working (idk if it hides the SSID but it disappears and you can't find it when searching the WIFI bands). I have to unplug it and plug it back then it works for X hours and I have to repeat the process. 

So far the worst TP-Link product I've ever bought and I bought many. 

What can I do? Should I return it and get a different one (does this happen often in this model?) or is there maybe a firmware version that doesn't do that and I can reroll it?