I have been using the GL-MT300A successfully as a reapeater since I bough it (approx. 5 months ago). In fact, tt worked fine until September one when I left for the weekend. When I came back (now), the MT300A seems bricked.
The Wi-Fi network the MT300A had been connected to has changed the security, which might have influenced the mini router, I guess.
Anyways, I tried to do a factory reset (8+ seconds) but nothing happened, not even the LEDs blinked. Same result for the UBoot procedure, where you press the reset button before powering the unit. All it does after getting power, is the two green and the one red LEDs stay on without blinking, as they should in pretty much all resetting scenarios.
Does any one have an idea what is going on? What I could try next?