ERR_TUNNEL_CONNECTION_FAILED error in Chrome – FIXED!

By ivan.diskin | January 18, 2019 |

greater than 5 minutes

While browsing the Internet using Google Chrome, it is possible to encounter the ERR_TUNNEL_CONNECTION_FAILED error. You should not panic if you get this error because it is very common. We will show you how to get rid of the ERR_TUNNEL_CONNECTION_FAILED error in Google Chrome, whatever the issue behind it.

Why does the ERR_TUNNEL_CONNECTION_FAILED error appear?

The ERR_TUNNEL_CONNECTION_FAILED error occurs when your browser (Chrome) is unable to create a tunnel to connect to the website you want to open. This implies that you are unable to access the internet. One of the most popular reasons behind this is the use of proxies to access the internet. Also, your cookies and browsing data that are saved in Google Chrome can be the reason you see the ERR_TUNNEL_CONNECTION_FAILED error. But as we said earlier, we will show you how to fix this error regardless of the reason it is occurring. Make sure you go through all the solutions until you find the one that works for you.

Table of Contents

  1. Disable Proxy Settings in Google Chrome
  2. Reset your network settings
  3. Change your DNS address
  4. Delete your browsing data
  5. Reset Google Chrome settings
  6. Update Google Chrome

Solution 1. Disable Proxy Settings in Google Chrome

If you are using proxy settings on your PC, you may encounter the ERR_TUNNEL_CONNECTION_FAILED error. You can fix this issue by changing the proxy settings on your computer. Use the following steps to do that:

  • Click on the 3 dots at the right side of the window to open the Chrome menu. From here, click Settings to open Chrome settings.
  • Scroll down and click on Advanced, then click Show advanced settings.
  • Under the System settings, click Open proxy settings.
  • This will open the Internet Properties dialog box. Go to the Connections tab and click on LAN settings.
  • This will open another window. There, you need to uncheck the Use a proxy server for your LAN box. Also, ensure that the Automatically detect settings box is checked.
  • Click OK to save the changes you have made.
  • Now, you should restart your computer, open Google Chrome and try to access the internet to check if the problem has been solved.

Solution 2. Reset your network settings

Resetting your Network settings is another way to fix the ERR_TUNNEL_CONNECTION_FAILED Chrome error. In this method, you need to flush your DNS and reset TCP/IP. Take the following steps to do it:

  • Right-click on your Start or Home button and select Command Prompt (Admin).
  • Once the elevated Command Prompt window opens, input the following commands individually (make sure to press Enter after each command):
  1. ipconfig /flushdns
  2. nbtstat –r
  3. netsh int ip reset
  4. netsh winsock reset
  • Exit Command Prompt when you are done, and open Google Chrome to check if the error has been resolved.

Solution 3. Change your DNS address

The IPv4 DNS address in your computer is set to either automatically get the DNS address, or it already has the DNS address of your Internet Service Provider. You could be encountering the ERR_TUNNEL_CONNECTION_FAILED error in Chrome because none of the settings mentioned above is functioning properly. To fix this problem, you can set your DNS address to that of the Google DNS server. Here is how to do it:

  • Click on the Start or Home button and input “control panel” (no quotes) in the search box, then select Control Panel from the list of results.
  • In the Control Panel, click on Network and Internet, then click Network and Sharing Center.
  • In the next window, go to the View your active networks section and click on your active internet connection.
  • Now, click Properties in the next window that pops up.
  • Navigate to the Networking tab and double-click on Internet Protocol Version 4 (TCP/IPv4).
  • Go to the General tab in the next window and select Use the following DNS server addresses, then enter the Google public DNS server addresses:
  1. 8.8.8.8 for the Preferred DNS server
  2. 8.8.4.4 for the Alternate DNS server
  • Now, check the Validate settings upon exit box, then click OK to save the changes you have made.
  • Restart your PC and open Google Chrome to check if the error is fixed.

Solution 4. Delete your browsing data

If you can surf the internet with other browsers but get the ERR_TUNNEL_CONNECTION_FAILED error when you try to use Chrome, then it is evident that the problem is with Chrome. So, to fix this problem, we suggest that you clear out your browsing data from Google Chrome. Here is how to do it:

  • When you open Chrome, click on the 3 dots at the right end of the window to open the Chrome menu, then click on Settings.
  • Scroll down and click Advanced.
  • In the next page, click Clear browsing data under the Privacy and security option.
  • Now, set Time range to All time, then click Clear Data.
  • Once everything is done, restart Chrome.

Solution 5. Reset Google Chrome settings

You can also try to reset Google Chrome settings if the above method did not work. Here is how:

  • Follow the steps in Solution 4, but this time, once you have opened the Advanced option, scroll down and select Restore settings to their original defaults under the Reset and clean up section.
  • In the next window, click Reset Settings.
  • Restart Chrome and try to access the internet again.

Solution 6. Update Google Chrome

An outdated version of Google Chrome can also be the reason for this error. In this case, you need to update Chrome to the latest version. Here is how to do it:

  • Open Google Chrome and click on the 3 dots at the right side of the window
  • Then select Help and click About Google Chrome. This will open a new window, and your browser will start looking for updates. If there are any updates, they will be installed.
  • Once it is done, restart Chrome and check if the error has been fixed.

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We hope that this article has shown you how to fix the err_tunnel_connection_failed error in Google Chrome. Share it with others who encounter similar issues.

We appreciate your ideas and comments, and we are ready to answer all your questions regarding this topic.

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