Hi!
Sometimes (once per 2-3 days) the miner (v 0.20.3) just quits. When I see no hashrate at the pool I check the system (Windows 10 x64 based) and see that everything is running except the miner. The system didn't reboot or had any stress.
What can bee the reason? Probably some timeout or repeating errors?
The bat file string is as follows. The GPUs are OCed by AB.
Thank you!

timeout /t 50
[path]t-rex.exe -a ethash -o stratum+tcp://eu1.ethermine.org:4444 -u [wallet address] -p x -w [rig name] --mt 0,0,1,0,0,0 -b 0 --temperature-limit 85 --temperature-start 50 --ab-indexing