Must likely your IP has changed then.
If the site says Open then you have done it Right, if it says Closed then you have done it Wrong.
Have you been reading my posts? My IP HAS changed, updated it, people get the "Unknown host" error when trying to connect. Ports were forwarded correctly, the site said so, but now it's not even though nothing's changed.
must be a network issue with either a firewall or a NAT issue. or the local ip is different.
even though nothing's changed.
somethings changed otherwise it would be working right now.