If you are an avid Chrome user, you might have encountered the frustrating “ERR_TUNNEL_CONNECTION_FAILED” error at least once. This error usually occurs when there is an issue with the proxy settings or the network configuration, preventing Chrome from establishing a secure tunnel connection. However, fear not, as we’ve compiled six effective ways to resolve this problem and get back to browsing without interruptions. So, let’s dive in and explore the solutions to fix the “ERR_TUNNEL_CONNECTION_FAILED” error in Chrome.

The “ERR_TUNNEL_CONNECTION_FAILED” error can be encountered while browsing the internet using Google Chrome. This issue typically occurs when the browser fails to establish a secure tunnel connection through a proxy server. It can be frustrating to encounter this error, especially when you need to access important websites or complete essential tasks online. However, there are several solutions you can try to fix this error and continue browsing seamlessly.

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Check Your Internet Connection

Before diving into complex troubleshooting steps, start with the basics. Ensure that your internet connection is stable and working correctly. Sometimes, a simple network glitch can cause the “ERR_TUNNEL_CONNECTION_FAILED” error. Try connecting to other websites or using different devices to verify if the issue is specific to your current device or network. If your connection is stable and the error persists, move on to the next step.

Disable Proxy Settings

Proxy settings can sometimes interfere with Chrome’s ability to establish a secure tunnel connection, leading to the “ERR_TUNNEL_CONNECTION_FAILED” error. To address this, follow these steps:

  1. Open Google Chrome and go to the Settings menu.
  2. Scroll down and click on “Advanced” to reveal additional settings.
  3. Under the “System” section, click on “Open proxy settings.”
  4. In the Internet Properties window, navigate to the “Connections” tab.
  5. Click on “LAN settings.”
  6. Uncheck the box that says “Use a proxy server for your LAN.”
  7. Click “OK” to save the changes.

After disabling the proxy settings, check if the error still persists. If it does, proceed to the next solution.

Clear Browsing Data

Accumulated cache and browsing data can sometimes cause browsing issues, including the “ERR_TUNNEL_CONNECTION_FAILED” error. Clearing this data can help resolve the problem. To clear browsing data in Chrome:

  1. Open Google Chrome and go to the Settings menu.
  2. Click on “Privacy and security” in the left sidebar.
  3. Select “Clear browsing data.”
  4. Choose the time range to clear. To clear all data, select “All time.”
  5. Check the boxes for “Browsing history,” “Cookies and other site data,” and “Cached images and files.”
  6. Click “Clear data” to proceed.

Once the browsing data is cleared, restart Chrome and check if the error is resolved.

Reset Chrome Settings

If the previous steps didn’t work, resetting Chrome settings to their default values might help fix the “ERR_TUNNEL_CONNECTION_FAILED” error. Here’s how you can do it:

  1. Open Google Chrome and go to the Settings menu.
  2. Scroll down and click on “Advanced” to reveal additional settings.
  3. Under the “Reset and clean up” section, click on “Restore settings to their original defaults.”
  4. Click “Reset settings” in the confirmation pop-up.

Note that this action will reset your startup page, new tab page, search engine, and pinned tabs. After the reset, relaunch Chrome and see if the error persists.

Update Chrome to the Latest Version

Outdated versions of Chrome can sometimes cause browsing errors, including the “ERR_TUNNEL_CONNECTION_FAILED” error. Updating Chrome to the latest version can potentially resolve the issue. Here’s how to update Chrome:

  1. Open Google Chrome and go to the Settings menu.
  2. Click on “About Chrome” in the left sidebar.
  3. Chrome will automatically check for updates and install them if available.
  4. After the update is complete, relaunch Chrome and check if the error is gone.


Encountering the “ERR_TUNNEL_CONNECTION_FAILED” error in Google Chrome can be frustrating, but fortunately, there are several effective ways to fix it. In this article, we explored six methods that can help you resolve the issue and get back to seamless browsing. Start by checking your internet connection and disabling proxy settings, then proceed to clear browsing data and reset Chrome settings if needed. Finally, ensure that you have the latest version of Chrome installed.

By following these troubleshooting steps, you can eliminate the “ERR_TUNNEL_CONNECTION_FAILED” error and enjoy uninterrupted browsing. Remember to keep your Chrome browser up to date and maintain a clutter-free browsing experience by clearing data regularly.


Q1: Why does the “ERR_TUNNEL_CONNECTION_FAILED” error occur in Chrome?

The “ERR_TUNNEL_CONNECTION_FAILED” error occurs in Chrome when the browser encounters issues while trying to establish a secure tunnel connection through a proxy server or due to network configuration problems.

Q2: Will clearing browsing data delete my bookmarks?

No, clearing browsing data will not delete your bookmarks. However, it will remove cookies, cached images, and other site data, but your bookmarks will remain intact.

Q3: What if I still see the error after trying all the solutions?

If the error persists even after trying all the solutions, consider restarting your device or contacting your internet service provider for further assistance.

Q4: Can use a VPN cause the “ERR_TUNNEL_CONNECTION_FAILED” error?

Yes, using a VPN with improper settings can potentially lead to the “ERR_TUNNEL_CONNECTION_FAILED” error in Chrome. Make sure your VPN is configured correctly or try disabling it temporarily to check if it resolves the issue.

Q5: Is it essential to update Chrome regularly?

Yes, updating Chrome to the latest version is crucial as it ensures you have the latest security patches and bug fixes, which can help prevent errors like “ERR_TUNNEL_CONNECTION_FAILED.”