Quick Summary
The "java.net.ConnectException: Connection refused: no further information:" error in Minecraft indicates that your computer is unable to establish a connection with the Minecraft server at the specified address and port. This typically means that the server is either not running, unreachable due to network issues, or actively refusing the connection.
Common Causes
- Server is Offline: The Minecraft server you are trying to connect to is not running or is currently offline.
- Incorrect Server Address/Port: You are using the wrong server address or port number. Even a small typo can prevent the connection.
- Firewall Blocking Connection: Your firewall (either on your computer or on the server's network) is blocking the connection between your computer and the Minecraft server.
- Network Issues: There are network issues on your end or the server's end, such as internet connectivity problems, routing issues, or DNS resolution failures.
- Server Overload: The Server is overload causing it to close connections.
Step-by-Step Fixes
Method 1: Verify Server Status and Address Show Steps ↓
Step 1: Confirm with the server administrator or host that the server is online and running.
Step 2: Double-check that the server address and port number you are using are correct. Pay close attention to capitalization and any special characters.
Step 3: If you have just changed the server settings, restart your Minecraft client.
Method 2: Check Firewall Settings Show Steps ↓
Step 1: Ensure that your firewall (Windows Firewall, macOS Firewall, or any third-party firewall software) is not blocking Java or Minecraft.
Step 2: Add exceptions for both Java and Minecraft to your firewall's allowed programs list.
Step 3: If applicable, check the server's firewall settings to ensure that your IP address is not blocked.
Method 3: Test Network Connectivity Show Steps ↓
Step 1: Test your internet connection by browsing other websites or using other online applications.
Step 2: Restart your modem and router to refresh your network connection.
Step 3: Try pinging the server address from your command prompt (Windows) or terminal (macOS/Linux) to check network reachability. Example: ping example.com or ping 123.45.67.89 (replace with the server address).
Method 4: Flush DNS Cache Show Steps ↓
Step 1: Open Command Prompt (Windows) or Terminal (macOS/Linux).
Step 2: Type ipconfig /flushdns (Windows) or sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder (macOS) and press Enter.
Step 3: Restart your computer.
Method 5: Contact Server Support Show Steps ↓
Step 1: If none of the above steps work, contact the Minecraft server's support team or administrator. They may be able to provide more specific guidance based on their server configuration.