Hi,
I have some problems with one of two rigs since ~1-2Days. The hashrate shown by pool dropped significantly (~40-50%) while miner shows correct values. I recognized that many shares were not accepted. Also I have many pool switches lately on both rigs.
Any ideas what might be the problem? The other rig is working perfectly fine on same pool and standing in the same location. It's quite hot the last days but the cards are running fine at 60-70°C and 86-90%, 78W. The rig is running with Linux (the other one Win10), Claymore11.6 and via WLAN (the windows one too - 72Mbit/s, perfect connection).
The only thing I changed lately was reducing GPU3s Memclock by some Mhz because I got many incorrect shares.
https://picload.org/view/dooacdgw/shares.png.html