I really hope someone here can help me with this problem.
I have two Antminers doing exactelly the same thing and it started at almost the same time.
Antminer S4
Antminer S5
They stopped hashing but I could still see the temp valuse and ASIC satus (all were 0000) as usual, just the speed was on 0GHs.
So I rebooted them like anyone would.
Now since that reboot they just do not start to hash. After boot that just sit there and do nothing. In the Miner Status page it does not even list the pools, same as if the miner just booted and the CGMiner process hasn't started yet.
In the System Overview page it doesn't list the Hardware version nor the CGminer version.
I've power cycled them, left them off for a few hours. do a hard reset, soft reset, reflashed the firmware with different versions from the Bitmain site. It just does not want to go any further.
On the S5 can see the red LED on the blades are lit and stays on. The Greed D1 LED is flashing, 2 and 3 are on, 4 is off on the conrtoller board.
On the S4 display it hows everything as normal, except the temp and GHs are on 0.
If one miner did this I would think ok HW failure, but both at almost the same time doing the exact same thing is very suspect, and even after all the resets and power cycles.
PSU for the S5: RIADMAX 1200W (RS1200AE)
http://postimg.org/image/hky6kvs3r/http://postimg.org/image/g9149f89p/