Hello. I have problem, nsgminer is not work for many pools. For example when mine VIVO. Use the same setting, but change pool name and port only.

My settings: nsgminer --neoscrypt --gpu-platform 1 -o stratum+tcp:// -u -p c=VIVO -I 16 -g 1

When i use s.antminepool.com:4233 miner works good.
If i use eu1.altminer.net:4233 then miner not loading. Miner    always show empty CMD window.
What could be the problem?