i had this problem last night when i set up my miners for the first time. heres what i did to fix the problem.
1. plugged everything in, deleted all of the existing baikal test pools, changed fan speed to 50, miner reset on its own -> miner down.
2. input my own pools, it didnt do anything, miner wouldnt reset on its own -> miner still down
3. under backups i restored the original baikal pools, miner didnt reset on its own so i pulled the plug, it restarted -> miner up
4. deleted all the pools EXCEPT NUMBER 1, changed fan speed to 50, changed the values for pool number 1 to the pool i wanted, saved, -> miner up
i may have had to do another hard reset after i added my pool in the last time i cant quite remember. after i got it running with the 1 pool i wanted, i added more backup pools to 2 and 3 and it worked fine. it seems there is a problem when you delete all pools and try to re add them, or it could be a problem adding pool #0, im not sure.
half way through the night i had one miner go down completely and one went down to 2 boards and i had to hard reset them both but they came right back up. if there was a way to soft reset when this happens it would be a lot more convenient.