Do you updated you gpu drivers? Because in the lastest version you need to enable the compute config in Global Settings > GPU Workload of AMD Radeon Settings.
If you are using Blockchain drivers Aug 23, this step it's not necessary, so you have another issue.
I'm dumb forgot to set a few things in the command line
hello.i m having this same issue as yours..may i know what to change to bring it back to normal..thnks..
I have the same problem. After I restart, three mining rigs drop hashrate from ~30 to ~20. Looking forward to your reply !!! Thanks.
I've been running into this as well. I've even reinstalled amd-gpu-pro blockchain and am getting the same results.
Benchmark runs gave me ~30 as normal so should not be any problems related to my local PCs. I did not do any updates, just restarting my rigs and this happens. I think this is somethings related to Claymore setups or mining server ... I am using Claymore 10.2 mining ETH and PASC with Ubuntu + Nanopool.