and use worker name ".itlbtu21" without the extra "."
2017-07-31 09:59:06.486] [info] Connecting to stratum tcp://equihash.usa.nicehash.com:3357.
[2017-07-31 09:59:26.507] [error] No such host: stratum tcp://equihash.usa.nicehash.com(Host not found (authoritative))
[2017-07-31 09:59:28.318] [info] Connecting to stratum tcp://equihash.usa.nicehash.com:3357.
[2017-07-31 09:59:48.339] [error] No such host: stratum tcp://equihash.usa.nicehash.com(Host not found (authoritative))
[2017-07-31 09:59:51.702] [info] Connecting to stratum tcp://equihash.usa.nicehash.com:3357.
[2017-07-31 10:00:11.723] [error] No such host: stratum tcp://equihash.usa.nicehash.com(Host not found (authoritative))
[2017-07-31 10:00:18.005] [info] Connecting to stratum tcp://equihash.usa.nicehash.com:3357.
[2017-07-31 10:00:38.026] [error] No such host: stratum tcp://equihash.usa.nicehash.com(Host not found (authoritative))
[2017-07-31 10:00:47.496] [info] Connecting to stratum tcp://equihash.usa.nicehash.com:3357.
[2017-07-31 10:01:07.517] [error] No such host: stratum tcp://equihash.usa.nicehash.com(Host not found (authoritative))
using optiminer-zec v1.7 zcash
-s stratum+tcp://equihash.usa.nicehash.com:3357 -u 3EWuUvtjmvRWyT9u2Hv7e1ktrBZ6Lrrvg1.itlbtu2.1 -p x
I'm about to pull my hair out with this rig.......any help is greatly appreciated.