Dabble

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Dabble on MC-31433 2021-10-16T14:16:56Z

@miwob Is this comment thread the most appropriate place for my above comment, or should I create a new issue?

Dabble on MC-31433 2021-10-10T20:28:25Z

It appears to still be a problem in 1.17.1 (I haven't tested any other versions), as I'm getting the following error message when trying to connect to a server with the server address <server name>:

[20:35:57] [Render thread/INFO]: Connecting to <server name>, 25565
[20:36:00] [Server Connector #1/ERROR]: Couldn't connect to server
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: <server name>/<server IP>:25565

This happens when my network adapter has a manually set IPv6 DNS server (which, for reference, is Cloudflare's 2606:4700:4700::1111 and 2606:4700:4700::1001). If I reset the adapter settings so that it obtains its DNS server address automatically, Minecraft is able to connect to the server without any problem.

Some additional info:

My network adapter's IPv4 DNS server is also manually set (to Cloudflare's 1.1.1.1 and 1.0.0.1 - for reference), but this doesn't seem to affect the previously mentioned problem at all.
The Minecraft server's domain only has an A record, not an AAAA record - in addition to the standard _minecraft._tcp.<server name> SRV record, naturally, which has a different port value than 25565.