The zcoin pool is not very usable at the moment.  Only getting this message on certain rigs for some reason.  Nothing I could do to solve it.  On other rigs I am not getting this error message at all.

[2017-11-10 11:02:00] Starting on stratum+tcp://europe.lyra2z-hub.miningpoolhub.com:20581
[2017-11-10 11:02:00] NVAPI GPU monitoring enabled.
[2017-11-10 11:02:00] 6 miner threads started, using 'lyra2z' algorithm.
[2017-11-10 11:02:00] Failed to get extranonce1
[2017-11-10 11:02:01] Stratum subscribe answer id is not correct!
[2017-11-10 11:02:01] JSON-RPC call failed: (unknown reason)
[2017-11-10 11:02:01] ...retry after 30 seconds
[2017-11-10 11:02:31] Failed to get extranonce1
[2017-11-10 11:02:31] Stratum subscribe answer id is not correct!
[2017-11-10 11:02:31] JSON-RPC call failed: (unknown reason)
[2017-11-10 11:02:31] ...retry after 30 seconds
[2017-11-10 11:03:01] Failed to get extranonce1
[2017-11-10 11:03:01] Stratum subscribe answer id is not correct!
[2017-11-10 11:03:01] JSON-RPC call failed: (unknown reason)