How to fix the "Internal Exception: java.io.IOException" error in Minecraft

HolyHosting
4 days ago
2 min read

Have you been playing peacefully on your Minecraft server and suddenly encountered this annoying error? "Internal Exception: java.io.IOException: An existing connection was forcibly closed by the remote host."

Don’t worry! Below, we’ll explain the most common causes and how to fix it. 👇

🔍Causes that trigger this error:

Unstable internet connection 📶This is one of the most common causes. A weak or interrupted connection can make Minecraft lose its link to the server, resulting in this error.
Incorrect server configuration ⚙️Sometimes, the server settings aren’t properly configured, which can cause the server to close the connection.
Firewall or antivirus blocking the connection 🔒Your firewall or antivirus might be blocking the connection to Minecraft, interpreting the traffic as suspicious.
Issues with the Minecraft client 💻Sometimes, the issue can be on the client side, such as a corrupted installation or incorrect settings.

🛠️ Solutions

Check your internet connection 🌐
- Make sure your connection is stable. Try restarting your router or switching networks if possible.
- Try using a wired connection instead of Wi-Fi for better stability.
Check the server configuration 🔧
- Make sure the server is properly configured and not overloaded.
- If you have access to the server, check the logs for any potential issues.
Adjust your firewall or antivirus settings 🔓
- Add an exception for Minecraft in your firewall and antivirus. This will prevent them from blocking the connection.

Reinstall Minecraft or update Java ⬇️
- Uninstall Minecraft and reinstall it to ensure there are no corrupted files.
- Make sure you have the latest version of Java installed, as Minecraft depends on it.
Increase the timeout in Minecraft ⏱️
- You can try increasing the connection timeout in Minecraft by editing the server’s configuration files.

Conclusion

With just a few simple steps, you can protect your valuable inventory and experience points in Minecraft—whether you're playing solo or with friends.We hope you found this guide helpful! 🚀 If you have any questions, feel free to ask in the HolyHosting Discord or reach out to our support team.