While Windows firewalls or security software often cause this error by blocking QuickBooks internet connection, there are also other, less well-known reasons that can trigger the 404 error in the QuickBooks. This article provides causes and troubleshooting methods to fix this QuickBooks error code 404. Thus, keep reading ahead!

Causes of QuickBooks Error 404

Here are the causes of QuickBooks Error 404:

• Installation errors with QuickBooks Desktop and registry errors in Windows
• General browser issues such as excessive cache and cookies and interruptions from third-party plugins
• Virus or malware infections can affect Windows or QuickBooks files.
• A poor internet connection
• A missing or deleted file required for the software to function properly.

Methods to Fix QuickBooks Error 404

You can read the following methods in order to rectify the error code 404 in QuickBooks desktop:

Method 1: Confirm your Internet Connection

• Firstly, check whether any website such as Google.com is accessible via Internet Explorer.
• If you can't access Google.com, there could be issues with your internet connection settings.
• If you can access other websites, open QuickBooks, go to the Help tab, and click on Internet Connection Setup.

• Under Internet connection settings, choose the option 'Use my Computer's Internet Connection Settings'.
• Click Next, then Done to complete the process and address the error code 404 issue with QuickBooks.

Method 2: Verify your Firewall and Antivirus Settings

• Initially, hit a click the Start button on your desktop and type "Firewall" in the search box.
• Click on Windows Firewall with Advanced Security to access your Firewall settings.
• If QuickBooks services are blocked, remove them from the list of blocked applications.
• If the issue persists, open your antivirus application's firewall and exclude any QuickBooks services from the blocked list.

Method 3: Delete Junk Files

To fix QuickBooks error 404 caused by junk files or plugins, remove them from your browser and switch to Private or Incognito Mode.

• Open your browser's settings and find the Cache and Cookies option.
• Delete all the cache and cookies from your browser through the settings option.
• Exit the browser, right-click its desktop icon, and select Private or Incognito Mode.

• To see if the issue 404 has been fixed, try logging into your QuickBooks Online account.

Method 4: Check for Windows Infections

• Use a virus scanner to check Windows for viruses.
• Download and install a virus and malware removal tool right away if you don't already have one.

Method 5: Repair or reinstall QuickBooks Desktop

• Employ the Clean Install Tool to reinstall the QuickBooks if fixing doesn't work.

Method 6: Adjust your Internet settings

• Launch Internet Explorer and choose the Internet option from the Tools tab.
• Go to the Security tab and choose the trusted sites option, then click Sites.
• Add Intuit.com and QuickBooks.com as your trusted sites.

• Close and log off the company file, and exit QuickBooks.
• Reopen QuickBooks and access the same company file where you encountered the 404 error earlier.

Conclusion

If you're experiencing the QuickBooks error 404 message, following the troubleshooting steps usually helps fix the issue. However, some users have reported the error persisting even after trying the troubleshooting steps. If you're still stuck with the error message, you can connect with one of our QuickBooks desktop error support experts for help at 1-800-615-2347.

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