Software⏱️ 3 min read📅 2026-06-11

How to Fix: Google Chrome gives ERR_ADDRESS_UNREACHABLE error for HTTPS page (site is perfectly reachable via curl)

Chrome browser issue with HTTPS page error

Quick Answer: Check Chrome's cache and cookies, as they might be causing the issue.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. ✅ Best Solutions to Fix It
  3. 💡 Conclusion

Google Chrome displays an ERR_ADDRESS_UNREACHABLE error when attempting to access HTTPS pages on port 8443, but the page is accessible via other browsers or tools like curl. This issue can be frustrating for users who rely heavily on Google Chrome for their browsing needs.

Debugging this error requires a systematic approach, starting with examining the browser's behavior and network interactions. By following these steps, you should be able to identify the root cause of the problem and implement a solution to resolve it.

🛑 Root Causes of the Error

  • The ERR_ADDRESS_UNREACHABLE error typically occurs when Chrome is unable to establish a secure connection to the HTTPS server on port 8443. This can happen due to several reasons, including: The target server's certificate is invalid or not trusted by Chrome. The target server is configured to use an alternative port or protocol that Chrome does not support.
  • Another possible cause could be related to network configuration issues, such as firewall rules or proxy settings that interfere with Chrome's ability to establish a connection.

✅ Best Solutions to Fix It

Enabling Developer Tools and Inspecting Network Requests

  1. Step 1: Open Google Chrome and navigate to the page that displays the ERR_ADDRESS_UNREACHABLE error. Press F12 to open the developer tools, then select the 'Network' tab.
  2. Step 2: In the network tab, look for the request that corresponds to the HTTPS page you are trying to access. Check if the request is being sent over a secure connection (HTTPS) and verify that the server's certificate is not causing any errors.
  3. Step 3: If the request is successful in other browsers or via curl, try clearing Chrome's cache and cookies by pressing Ctrl+Shift+R or navigating to chrome://settings/resetBrowserSettings. This may help resolve the issue.

Checking System Configuration and Firewall Rules

  1. Step 1: Check your system configuration to ensure that the target server is configured correctly, including the port number (in this case, 8443) and any necessary firewall rules or proxy settings.
  2. Step 2: Verify that the target server's certificate is valid and trusted by Chrome. You can do this by checking the server's SSL/TLS configuration or by using a tool like OpenSSL to verify the certificate.

💡 Conclusion

By following these steps, you should be able to identify the root cause of the ERR_ADDRESS_UNREACHABLE error in Google Chrome and implement a solution to resolve it. Remember to always clear your browser's cache and cookies when troubleshooting network-related issues.

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