for those mining arrow getting NO connect to zpool using gminer its because: version
gminer_2_77_windows64___fixed bug added option to enable unsecure DNS name resolving (--secure_dns 0) to server pools
gminer_2_76_windows64___removed support of Equihash 192,7
gminer_2_75_windows64___ has support for 197,7 but did not resolve the "connect to ... Failed:  Host not found found (secure_unsecfure dns bug)