Ok is not suddenly , i hear is happen after they change the el. meter
But i try 2 other 12v supply , i try 3 cables even a cros cable to netisntall , but no luck at all. Its look like mikrotick is restarting and make some strange beep sounds , more like old ringking phone ,every X seconds . I try to reset it thrue the the bottom reset hole with screwdriver, but not luck again. I thing from that moment the ring sounds start, before that no sounds, no beeps.
model is : RB951VI-2HnD
i try before hole reset winbox to connect, but again … nothing.
Hope you are all fine in this sick times !