These are IPS of the mining pool servers, check ping for each and choose one that works best for you
europe.equihash-hub.miningpoolhub.com 139.162.138.168
europe.equihash-hub.miningpoolhub.com 172.104.180.119
europe.equihash-hub.miningpoolhub.com 172.104.106.153
europe.equihash-hub.miningpoolhub.com 172.104.127.76
europe.equihash-hub.miningpoolhub.com 139.162.73.35
europe.equihash-hub.miningpoolhub.com 172.104.189.59
That being said, you should probably use fqdn as it will return the fastest server for your area, if I'm not mistaken.
I'm in Europe, only server under 250ms is 139.162.138.168 at 50ms for me and it's not accepting connections at the moment.
Try us-east.ethash-hub.miningpoolhub.com, it pings ~180ms from where I'm at (East Europe)