Hi Guys!

I have an Audience and after a reboot the red and blue led is on and the device is dead. The LED of LAN ports don't light. I have tried to use another power supply, and POE Switch without any result.

I can not put the device in netinstall mode.

Is it a well known symptom and/or a dead device?

Blue led means the device is powered on and the blinking Red that the device scans for radar (DFS)
https://mikrotik.com/product/audience#fndtn-downloads

So the leds do not indicate any problem...

The red is not blinking just on with the blue one. The device is dead and i got a replacement from the dealer.

Did you try to netinstall ?