Software⏱️ 4 min read📅 2026-06-19

How to Fix: Server Not Found error on some servers

Windows Server Not Found error on some servers, Firefox and Internet Explorer issues with Cloudfront.net

Quick Answer: Check DNS settings and ensure the server is not blocked by a firewall or antivirus software.

📋 Table of Contents

  1. 🔍 Why This Happens
  2. ✅ Best Solutions to Fix It
  3. 💡 Conclusion

The Server Not Found error is a common issue that affects users of Windows 7 64-bit and Ubuntu operating systems. It occurs when the browser is unable to connect to a website's server, resulting in an error message. This issue can be frustrating as it prevents users from accessing websites they need to visit.

In this troubleshooting guide, we will walk you through the possible causes of the Server Not Found error and provide steps to resolve the issue.

🔍 Why This Happens

  • One main reason for the Server Not Found error is a misconfigured DNS (Domain Name System) settings. When the DNS settings are incorrect, the browser cannot connect to the website's server, resulting in an error message. This can occur when the hosts file is empty or contains incorrect entries.
  • Another possible cause of the Server Not Found error is a firewall or proxy configuration issue. Some firewalls and proxies may block connections to certain websites or domains, resulting in the error message.

✅ Best Solutions to Fix It

Reset DNS Cache and Check Hosts File

  1. Step 1: Step 1: Reset DNS cache on Windows 7.
  2. Step 2: Press the Windows key + R to open the Run dialog box. Type 'cmd' and press Enter to open the Command Prompt. Type 'ipconfig /release' and press Enter to release any existing IP connections. Then, type 'ipconfig /renew' and press Enter to obtain a new IP address.
  3. Step 3: Step 2: Check hosts file for incorrect entries on Windows 7.
  4. Step 4: Open Notepad as an administrator by right-clicking on the Notepad icon and selecting 'Run as administrator'. Open the hosts file (usually located at C:/windows/system32/drivers/etc/hosts) and check for any incorrect entries. If you find any, remove them and save the file.
  5. Step 5: Step 3: Check hosts file for empty or missing entries on Ubuntu.

Check Browser Cache and Cookies

  1. Step 1: Step 1: Clear browser cache and cookies in Firefox.
  2. Step 2: Press Ctrl + Shift + R to open the Firefox refresh page. This will clear the browser cache and cookies. Repeat this process a few times to ensure all data is cleared.
  3. Step 3: Step 2: Check browser cache and cookies in Internet Explorer.

💡 Conclusion

To resolve the Server Not Found error, try resetting DNS cache and checking hosts file for incorrect entries on Windows 7. Additionally, clear browser cache and cookies in both Firefox and Internet Explorer to ensure all data is cleared. If the issue persists, try using OpenDNS or other DNS services to see if it resolves the problem.

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