cgminer 3.6.6
at drawf pool

cgminer --keccak -o "stratum+tcp://erebor.dwarfpool.com:3339" -u COIN_WALLET -p 1
--failover-only -o "stratum+tcp://moria.dwarfpool.com:3339" -u COIN_WALLET -p 1

in .bat

now working for me.