How To Fix ERR_TUNNEL_CONNECTION_FAILED Error on Windows 10

Google Chrome is the most popular web browsers nowadays. Aside from its free to download, it is also considered to be user friendly and secure as well. Although Google chrome is a stable browser, there have been reports from Chrome users getting ERR_TUNNEL_CONNECTION_FAILED error when trying to open a website using Google Chrome browser. In this latest installment of our troubleshooting series, we will talk about the recommended solutions that you can try to fix ERR_TUNNEL_CONNECTION_FAILED error on Windows 10.

What to do if you get ERR_TUNNEL_CONNECTION_FAILED error

The error message on Google Chrome occurs when the browser is unable to make a Tunnel Connection to the host when attempting to open a website on Chrome. There are several factors that can cause this error to occur such as the use of proxy servers, website domain config is incorrect, issues with DNS connection to conflicts with the browser. Listed below are troubleshooting solutions that you can try to fix ERR_TUNNEL_CONNECTION_FAILED error on Windows 10.

But before performing the recommended troubleshooting solutions below, its best to restart your Windows computer first. This action refreshes the Windows operating system and removes any corrupt temporary data that could be causing the problem.

Solution 1: Disable Proxy Settings

Disabling Proxy Settings should be the very first thing that you need to do when fixing ERR_TUNNEL_CONNECTION_FAILED error on Windows 10. Change proxy settings on your computer and then check if the problem will be fixed.

To do this:

  1. Press Windows Key + R on your keyboard to open RUN dialog box

    Open RUN dialog box

  2. At RUN dialog box, type 'inetcpl.cpl' and press Enter or click OK to open Internet Properties window.

    Internet Properties

  3. At Properties section, click Connections tab.

    Connections tab

  4. Click LAN settings button under Local Area Network (LAN) Settings. A new window opens.

    ERR_TUNNEL_CONNECTION_FAILED

  5. Under Automatic Configuration section, click the option 'Automatically detect Settings”

    ERR_TUNNEL_CONNECTION_FAILED

  6. Under Proxy server, uncheck the option “Use a proxy server for your LAN”.

    ERR_TUNNEL_CONNECTION_FAILED

  7. Click OK to apply changes made.

    ERR_TUNNEL_CONNECTION_FAILED

  8. Click OK to exit Properties.

    ERR_TUNNEL_CONNECTION_FAILED

  9. Restart computer.

    ERR_TUNNEL_CONNECTION_FAILED

Once computer completely reboots and proxy settings was already changed, check if ERR_TUNNEL_CONNECTION_FAILED error still occurs.

Solution 2: Reset Network Settings

If you are having issues with the internet service provider, it is possible to be the culprit for the error to occur. To fix this, you may need to reset Network Settings. The solution involves resetting the TCP/IP as well as flushing of DNS.

To do this, follow the steps below:

  1. Type Command Prompt at the search bar located at the lower left.
  2. Right click on Command Prompt result and click Run as Administrator from the drop down menu.
  3. At Command Prompt window, type the following commands and press Enter after each command.
  4. Type netsh winsock reset and press Enter
  5. Type netsh int ip reset and press Enter
  6. Type ipconfig /release and press Enter
  7. Type ipconfig /renew and press Enter
  8. Type ipconfig /flushdns and press Enter.
  9. Exit Windows PoweShell window.
  10. Restart computer

Once computer completely reboots, check if ERR_TUNNEL_CONNECTION_FAILED error still occurs.

Solution 3: Change DNS settings

Google DNS server address is the preferred DNS server as it provides users with a more faster and secure Internet connection. There have been reports from users wherein ERR_TUNNEL_CONNECTION_FAILED error was resolved after changing DNS address.

To do this:

  1. Press Windows key + I on your keyboard to open Windows settings section.
  2. Inside Windows Settings, click Network & Internet
  3. Under Advanced network settings of network status, click Change Adapter options. A new window opens.
  4. Inside Network Connections window, right click on your network and click Properties.
  5. Under Wi-Fi Properties, click Networking tab.
  6. Scroll down and double click Internet Protocol Version 4 (TCP/IPv4) to open it.
  7. Click on the option “Use the following DNS server addresses”
  8. Input 8.8.8.8 as Preferred DNS server
  9. Input 8.8.4.4 as Alternate DNS server
  10. Click OK to apply DNS settings.
  11. Click OK to exit Wi-Fi Properties

Visit a website again and then check if ERR_TUNNEL_CONNECTION_FAILED error still occurs.

Solution 4: Clear Chrome Browsing Cache

Cache is where data’s are stored from browsing the website. This allows a faster browsing the next time you use the website. However, if at some point there too much data stored on the browsing cache it can slow down browsing and prevents the user to browse the websites causing the error to occur. To fix this, you might need to clear browsing data on Chrome browser.

To clear browsing data

  1. Open Google Chrome browser. It is usually located on the desktop of your computer or on the taskbar.
  2. Click on the three vertical dots located at the upper right.
  3. Click More tools from the drop down menu.
  4. Click Clear Browsing Data option. A new window opens.
  5. At new window, you can choose from the drop menu the time range from when you start experiencing the error or you can choose the ALL TIME option to clear all browsing cache which is recommended.
  6. Make sure all three options (Browsing History, Cookies and other site data and cache images and files) are checked.
  7. Click Clear Data tab to start clearing of browsing cache. Wait for the process to complete.
  8. Restart computer.

Once computer completely reboots, visit a website again and then check if ERR_TUNNEL_CONNECTION_FAILED error still occurs.

Solution 5: Reset Google Chrome Settings

If none of the solutions mentioned above did not fix ERR_TUNNEL_CONNECTION_FAILED error, you may now at this time Reset chrome browser on the advanced chrome settings section and then check if the error message will be resolved.

To do this:

  1. Open Google Chrome browser. It is usually located on the desktop of your computer or on the taskbar.
  2. Click on the three vertical dots located at the upper right.
  3. Click Settings.
  4. At Settings window, scroll down and click Advanced
  5. At Advanced section, scroll down to navigate to Reset and clean up section.
  6. Under Reset and clean up, click the option “Restore settings to their original defaults”.
  7. At new window, click Reset Settings tab.

Visit a website again and then check if ERR_TUNNEL_CONNECTION_FAILED error still occurs.

Solution 6: Update Google Chrome Browser

An outdated browser can cause errors and issues especially when visiting a website using chrome. To fix this, you may need to update Google Chrome browser for the latest version. Make sure browser is up to date to avoid getting errors.

To do this:

  1. Open Google Chrome browser. It is usually located on the desktop of your computer or on the taskbar.
  2. Click on the three vertical dots located at the upper right.
  3. Click Help from the drop down menu.
  4. Click About Google Chrome. A new window opens.
  5. Google Chrome will automatically search for updates. If there is an available to update it will automatically start the update process.

After Google chrome browser is up to date, visit a website again and then check if ERR_TUNNEL_CONNECTION_FAILED error still occurs.

Solution 7: Disable Chrome Extensions

If none of the above solutions mentioned did not fix error message on Chrome, you may need to disable one extension at a time. After a specific extension is disabled and the issue is fixed, remove the extension from the list.

To do this:

  1. Open Google Chrome browser. It is usually located on the desktop of your computer or on the taskbar.
  2. Click on the three vertical dots located at the upper right.
  3. Click More tools from the drop down menu.
  4. Click Extensions.
  5. Toggle OFF each extension and then check if the error occurs. Repeat the same step on the rest of the extension until the issue will be fixed.
  6. Restart your computer

Once computer completely reboots, visit a website again and then check if ERR_TUNNEL_CONNECTION_FAILED error still occurs.

After following the solutions mentioned, you will successfully fix ERR_TUNNEL_CONNECTION_FAILED error in Google Chrome. For more troubleshooting videos, feel free to visit our TheDroidGuy Youtube Channel.

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