Howdy!
I have 2 S4's that all of a sudden stopped mining. They are stock settings, no voltage change and I have tried a few different firmware's and they all show the same behavior. When I look at the Miner Status tab, all the values are blank.
The display on the front shows the correct IP. I have tried a few different pools, but no change.
Any suggestions?
Did you just happen to get your 2nd miner recently? If so disconnect one miner and see if it runs by itself without stopping.