Hello,

Any idea why a 841 miner or two may drop out out from CGMiner after X amount of hours. This has been randomly happening. After it drops it will continuously drop in and out from cgminer with a primary red LED light and 0 for hash, PG and rpm. Logs show

ECHU[1 1 1 1]
ECMM[197]

However a physical power reboot brings the device back up and running with no errors in log once it is up and running. I have tried reducing the string size per AUC to 4, and only running 3 AUCs per controller for a total of 12 units. I thought that worked as the environment has been stable for its longest period of time but one just dropped on me this morning. Sometimes it is not the same miner and it can be from a different string. I have a case open with Canaan but wanted to check here as well.