Lately, some of my D3s only showing 2 hashboards on the miner status page or 53/54 ASICs (5 out of 20 to be exact). Sent 3 back so far for RMA and received 2 new D3s shipped directly from Bitmain. I updated to latest firmware but that didn't help. Wondering if this high failure rate is more common with D3s and if there is an easy fix?
what firmware version are you running on it?
Most recent one dated Nov 20.
Did you tried to instal 1.0.7. version, for me very stable, much more the 1.0.9.
but before you do flashing, try to change pool for few minutes and then put on you pool again.