Sounds like one board has stopped hashing. Have you done a reboot? If that fails power down & check the Hash cables, unplug & replug, then power up again.
Rich
Hi Rich i did a reboot and unplug & replug then powerd it up again.
Give us a screenshot for the miner status page on the AntMiner's webserver page. A picture of your setup, your psu connected to it. Does it beep, is the light on the cold board on and if the red led is flashing, always on, or always off.
It dont make a beep sound, on the right side the red light is off, on the front of the antminer de light slowly blinks green
