Fix Minecraft "io.netty... Connection Refused: No Further Information"
io.netty.channel.AbstractChannelConnection refused: no further informationFailed to connect to the serverThis long io.netty error boils down to one thing: your client couldn't open a connection to the server. Usually it's the address, the port, or the server being down. Here's how to check.
Step 1: is the server online?
Confirm it's up for everyone, not just you, with our Minecraft status checker. If it's offline for all, it's the server, not you.
Step 2: check the address and port
"Connection refused" almost always means a wrong address or port. Verify the exact IP/domain, and add the port if it's non-default:
play.yourserver.net:25566 # only if the port isn't 25565Step 3: server admin checks
- The server is actually running and bound to the right IP (
server-ip=blank usually = all interfaces). - The port is open in the firewall and forwarded.
- There's no SRV-record mismatch if you use a domain.
That phrase just means the OS gave no extra detail — it doesn't indicate a deeper problem. Treat it as a plain "couldn't connect" and check address, port and server status.
It's a connection failure. Check the server is up, then the address and port — that's where the problem almost always is.
Minecraft is a trademark of Mojang Synergies AB / Microsoft. ESAGAMES is an independent hosting provider, not affiliated with or endorsed by Mojang or Microsoft.
A server that's always reachable
Our Minecraft hosting gives you a clean ip:port with the firewall handled — protected, online in minutes.
Frequently asked questions
What does "io.netty connection refused" mean in Minecraft?
Netty is Minecraft's networking library; the message means your client couldn't establish a connection. Usually the server is down, or you have the wrong address or port.
What does "no further information" mean?
It just means the operating system returned no extra detail about why the connection failed. It's not a separate problem — treat it as a normal connection refusal.
How do I fix it?
Check the server is online (with a status checker), confirm the exact address and port, and — if it's your server — make sure it's running and the port is open and forwarded.
Related articles
Fix AMX Mod X "Couldn't load library" / Plugin Failed in CS 1.6
AMXX plugin stuck on "bad load", "couldn't load library" or "failed"? The real causes and the exact fix.
Read fix Game ServersFix FiveM "Couldn't load resource" / Failed to Start
A FiveM resource won't start or throws "couldn't load resource"? Here are the real causes and fixes.
Read fix Game ServersFix Rust Oxide / uMod Plugins Not Loading
Oxide/uMod plugins not loading after a Rust update? The usual causes and the quick fix.
Read fix
