Hi.
I see you have pasted inn an error message. But I think we need to see more to help. Could you post the relevant log files plese?
It would also help to know some details:
- in your minecraft client (externally): Do you see your server? Do it ping and get a green light?
- do your clent try to connect, then fail with a connetion refused? What is the error message in your client?
It do seem like there is a block on the relevant port. There are several places such a block could reside:
- On the server in the iptables: https://minecraft.codeemo.com/mineoswiki/index.php?title=Iptables
- On your internet router / switch / modem: possible rror in port forwarding? Any firewalls there that blocks?
- block at your ISP: Some of them aren’t to happy about servers and stuff running on private lines.
- config at your ISP: minecraft / mineos isn’t to happy about IPv6, and some ISP only offer IPV6 as an external address. Check https://whatismyipaddress.com/ to see i you have IPv4, IPv6, or both.