Anyone here that has the same problem - "-r 60" does not work, it does not reboot the miner after 60 minutes, also "-minspeed 250" does not reboot the miner if speed fall below 250MH ?
-r 1 is what tells the miner to reboot, as opposed to -r 0 which mean reload the miner.
So you need to set both "-r 1" for reboot, and "-minspeed 250"
here's how mine is set as an example:
-epool stratum+tcp://eth-us-west1.nanopool.org:9999 -ewal 0x2e4832749387423987493287423987493284.$rigName/me@mail.com -epsw x -r 1 -minspeed 375