On page 7 sections
Briefly
The main reason. The rest and what to do - below
A typo in an address is an extra letter, dot, or space.
Unknown server Unknown host
Failed to get host name Can't resolve hostname
The lines are from the game itself, in Russian and English.
- A typo in an address is an extra letter, dot, or space.
- The server changed the domain or the domain stopped renewing.
- If your DNS doesn't work, then websites won't open either.
- Copy the address again, without spaces at the beginning and at the end.
- Check the address in "Server Check": if it also does not find the name, the address is incorrect.
- Check that the domain has an A record (or an SRV for another port) on the server's IP.
What do you mean "unknown server" in Minecraft?
The game did not find such an address: this name does not have a server in the DNS.
Why does it say "unknown server"?
The address error is an extra letter, a dot, or a space. The server has changed the domain or the domain has ceased to be extended. You don't have a DNS, so you don't open any websites.
How can the Unknown server be corrected?
Copy the address again, with no blanks at the beginning and at the end. Check the address in the server check: if it does not find a name, the address is incorrect.
- Unable to connect to server
- Timed out
- Connection lost
- End of thread
- Network protocol error
- Client incompatible
- An incomplete set of tags was received from the server
- Failed to verify username!
- Invalid session
- Multiplayer disabled
- Authentication servers unavailable
- Account blocked for online play
All errors Check server How to log into the server
Error texts are from the localization of Minecraft 26.3 word for word; reasons and advice are editorial.