Whenever I try to join my server, I get the message: "io.netty.abstractchannel$annotatedconnectexception: connection timed out: no further information".

Hi there!

Make sure you're following every instruction according to the moderator's note on MC-120362, that may help you out. Try checking on the website linked on that note for more information if the information directly written in the note doesn't fix the problem. This issue will likely be resolved as a duplicate of that report.

Thank you for your report!
We're tracking this issue in MC-120362, so this ticket is being resolved and linked as a duplicate.

That ticket has already been resolved as invalid, which means this is a technical support issue. Please take a look at the parent ticket (MC-120362) and see if a solution is provided there.
If you need additional help to fix this problem, please contact the Community Support

If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.

Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – ✍️ Feedback and Suggestions – 📖 Game Wiki