Hello, 

as a resolution of the topic https://community.tp-link.com/en/home/forum/topic/175360 I got a custom (I think) firmware made by support engineers by mail, which I uploaded to the repeater and it worked until today.

Today I noticed a new firmware available in application from TP-Link (Tether). When I tried to launch the update, I got the information that downloading failed, so I went to my PC and to repeater's web page. There, I allowed it to update and update went through - or I thought so.

Immediately after the download bar disappeared, I got error message from repeater's web server that it cannot find \ page. Similar to normal HTTP 404 message. Yet, I waited - Power LED was blinking on repeater all the time. As a strange thing I would say that the WiFi from repeater was available all that time.

After two / three hours of wait, all LED's disappeared and Power LED was still blue, no bliking. All network communication went impossible - no networking on the repeater, not even any reaction to the LAN cable connection. RESET button also does not work, regardless of how long I hold it, be it 1 second as manual says or 30 seconds. After plugging it off and on from socket, I get for a second all LEDs shining blue with exception of Status LED (which is red), but after that only Power remains stable blue.

Can I do anything about that or only warranty becomes my only hope here?