Software⏱️ 3 min read📅 2026-06-15

How to Fix: Error: The data connection could not be established: ECONNREFUSED - Connection refused by server

Error establishing data connection with FTP server due to Connection refused by server. Possible causes include firewall issues, incorrect port settings, or server configuration problems.

Quick Answer: Check the server's firewall settings and ensure that the correct port is being used. If using a proxy, verify its configuration and connectivity.

📋 Table of Contents

  1. 💡 Why You Are Getting This Error
  2. 🚀 How to Resolve This Issue
  3. ✨ Wrapping Up

The error 'ECONNREFUSED - Connection refused by server' occurs when an FTP client is unable to establish a connection with the FTP server. This issue affects users who are trying to connect to the FTP server using FileZilla or any other FTP client.

This error can be frustrating for users as it prevents them from accessing files on the FTP server. In this troubleshooting guide, we will walk through the steps to resolve this issue and provide alternative solutions.

💡 Why You Are Getting This Error

  • The primary reason for this error is that the FTP server is not listening on the specified port (in this case, 2555) when connected remotely. This can happen due to various reasons such as incorrect configuration, firewall rules, or software conflicts.
  • Another possible cause is a misconfigured network settings or a routing issue between the client and the server.

🚀 How to Resolve This Issue

Check FTP Server Configuration and Firewall Rules

  1. Step 1: Verify that the FTP server is configured to listen on the correct port (2555) for remote connections. Check the FTP server's configuration files or consult the documentation for the specific FTP server software being used.
  2. Step 2: Ensure that the firewall rules are not blocking incoming connections to the FTP server. Check the firewall settings and adjust them if necessary to allow incoming connections on the specified port.
  3. Step 3: Test the FTP connection using a different client or tool to rule out any issues with FileZilla.

Check Network Settings and Routing

  1. Step 1: Verify that the network settings are correct and there are no routing issues between the client and the server. Check the network configuration files or consult the documentation for the specific network setup being used.
  2. Step 2: Use a network diagnostic tool to troubleshoot any potential network issues.

✨ Wrapping Up

To resolve the 'ECONNREFUSED - Connection refused by server' error, first check the FTP server configuration and firewall rules to ensure they are correct. If the issue persists, investigate network settings and routing to identify any potential problems. By following these steps, you should be able to establish a successful connection with the FTP server.

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