I'm new to mining, I have one rig running 6 rx580s. I noticed restarts caused by the devfee being unreachable. I added the nofee switch and mined for 24 hrs nonstop. I'm using simplemining and these are my current settings:

-wd 1 -r 1 -epool stratum+tcp://eth-us.dwarfpool.com:8008 -ewal $walletETH/$rigName -esm 0 -epsw x -allpools 1 -mport -3333 -asm 1 -mode 1

It's trying to go to us1.ethermine.org and can't get there.

https://image.ibb.co/buhLxm/miner_rebooting.png

Is there something I missed?