After running 10 or 20 minutes my antminer S9_V2.54 hash rate has become 0 but why?????? I have checked fan speed, my both fan is perfectly ok. Here is a screenshot of my mining status page

http://bit.ly/2DPgNBw

Submitted November 30, 2018 at 02:14AM by hilmonjony http://bit.ly/2Qo4Qtk