QUOTE(gtoff443 @ Aug 23 2025, 21:34)

the port is communicating properly, and the overseas connection is working (VPS is in China). IPv6 is disabled.
An usual reason for this for a VPS in China is the datacenter's ICP filing enforcement. The provider would inspect incoming TLS requests and inject reset packet if the domain failed ICP filing.
You can test if it was this case by opening a port manually and connect to it.
On the VPS,
CODE
netcat -kl 58807
On your local machine, assuming your IP was 1.2.4.8,
CODE
curl -v https://hath.network --connect-to ::1.2.4.8:58807
CODE
curl -v http://hath.network --connect-to ::1.2.4.8:58807
See if you got
Connection reset by peer.