Any suggestions for troubleshooting reliability of my units? After the latest update to 3.1 I seem to be babysitting my units checking on them multiple times a day to make sure all 4 are working (one full and 3 additional units). At least once per day on average I have to restart the miner or the entire system. Prior to 3.1 the need for attention was much less frequent.

Temps seem fine at 63 to 65C for the units and 65C for the CPU (which I think is good).

I have tried switching to an external powered USB hub instead of running all off the USB ports on the full unit. I read here that helps with reliability. That has made no difference in my case.

Wondering if I should just reimage my SD Card and start from scratch...

Thanks in advance!