Unfortunatly i think i have a dead control board. The LAN Lights/LEDs stay on all the time, no matter if a LAN cable is connected or not. This happend once in the past. I could reset it once and the miner worked fine then for 3 days, but now it happend again and reset (with s2 button) doesnt help. I also tried resetting with "the old method (shorting with a wire 3,3v and pin2) but also this didnt help.

I also tried with only first board / only second board / single boards / diffrent power supply nothing helps

Any suggestions?