I have rented Ethash (Dager Hashimoto) rig on Mining Rig Rental but connection to stratum+tcp://europe.ethash-hub.miningpoolhub.com:17020 is rejected.
MRR admin sad that pool is closing connection.
When I tried to mine on f2pool with same rig, everything was perfect
Have you setup your worker correctly?
That message you get when worker cannot get authorised on the pool, check for worker name and password in your script.
