❌ Error: Internal exception: java.io.IOException: An existing connection was forcibly closed by the remote host

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This error usually occurs when your connection to the server is interrupted or unstable, preventing Minecraft from downloading data smoothly. It’s commonly caused by:

🕸️ Weak or unstable WiFi signal

📶 Network congestion from other apps or devices

🌐 ISP instability or slow speeds

✅ How to Fix It

Close any high-bandwidth apps
Stop video streams, downloads, or other devices using the same connection.

Restart your router or modem
A simple reboot can often fix connection hiccups.

Run a speed test
Use Speedtest.net to check your connection quality.

Switch to a wired connection (if possible)
Ethernet is more stable than WiFi, especially for gaming.


Once your internet connection is stable, try connecting to the server again. In most cases, the error will no longer occur.

Updated on: 25/04/2025