6 Ways to Fix Err_Tunnel_Connection_Failed Chrome | [ Problem Solved ]

Without a doubt, Chrome is one of the most popular and widely used browsers, but it sometimes gives rise to many problems and strange errors such as Err_Tunnel_Connection_Failed . ERR_CACHE_MISS and more.

This error seems more frustrating than it actually is. Fixing such a chrome error is very simple and takes only 5 to 10 minutes of work. If you are wondering how to solve the Err_Tunnel_Connection_Failed error, we will let you know how to correct the error.

What are the causes of the failure of the tunnel link?

In the Chrome browser, you will see Err_Tunnel_Connection_Failed if there are conflicts or poor configuration. This could be your browser, your network connection or the website you are trying to visit. Here are some of the known causes of Err_Tunnel_Failed connection failure:

  1. There are conflicts in your browser data
  2. Incorrect network configuration
  3. Problem with DNS
  4. VPN use is blocked
  5. Incorrect proxy configuration

Now that you know why, let’s discuss the solution.  Let’s mention several methods to solve Err_Tunnel_Connection_Failed problem, just follow them one by one and your error will disappear forever.

How do I solve the tunnel connection error?

The Err_Tunnel_Connection_Failed problem is so common that anyone can encounter it from time to time. But, like the problem, the solution is very simple. Follow the steps below and the problem will be solved.

As mentioned, the causes of Err tunnel connection failure are different, so the solution for each task is also different. We don’t know why this mistake was made, and neither do you. Therefore, we will mention here several methods to correct the Err_Tunnel_Connection_Failed error. We’ll start with the most common solution that has worked for most of our readers and then move on to other solutions. You can follow the solution in Solution 1 to fix the Err tunnel connection failure.

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Solution 1: Restart your PC

If you’ve been following our blog for a while, you probably know that the first step to fixing a problem is to restart your computer.

Nearly 80% of the problems you encounter with your computer (as long as you don’t delete any erroneous or necessary files) are solved by simply restarting the computer. Have you tried restarting the computer?

If you haven’t tested it, it’s best to reboot the PC, as most read issues related to Err_Tunnel_Connection_Failed are simply resolved by rebooting the PC.

Solution 2: Check DNS input

If you are wondering what DNS is, let us explain it to you in simple terms.

Google’s page is, but that’s a lot of numbers to remember to avoid using such DNS numbers. When you visit a website, you tell Google DNS to change and the browser opens the official Google website. Is that a magical right?

Sometimes, when DNS can resolve an IP address, the Chrome browser displays Err_Tunnel_Connection_Failed. To solve this problem, we just need to change our DNS record. To change the DNS entry of your PC, just follow the steps below:

Pay attention: The entire tutorial is done under Windows 10. For other versions of Windows, the steps may be slightly different, but the methods are the same.

Here are some of the useful DNS you can use.

Google DNS :

Preferred: 8.8.8
Alternative :


Alternative :

Cloud Glow DNS

Preferred: 1.1.1
Alternative :

To change the DNS entry of your PC, just follow the steps below:

  1. Open the control panel of the computer.Err_Tunnel_Connection_Failed
  2. Search for network sharing.Err_Tunnel_Connection_Failed
  3. Open Network and Sharing and click on Ethernet Network / Wifi, depending on whether you are connected via LAN or Wifi. (In this tutorial I am using a local network, so it is Ethernet).Err_Tunnel_Connection_Failed
  4. Click on Properties
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  1. Double-click on Internet Protocol Version 4.

  1. Use the following DNS server address and enter one of the DNS entries above.

  1. In the above example, we are using Google’s DNS. After entering the DNS of your choice, simply click OK and restart your computer.

If you followed all the steps and fixed the problem, congratulations, but if it still didn’t work, the problem is probably not due to a bad DNS configuration.

Solution 3: Proxy error scheme

Now that you know the problem is not DNS, it may be a proxy issue that caused the Err_Tunnel_Connection_Failed message. To check whether the problem is related to the proxy server or not, follow the instructions below:

If you are using a proxy service, please contact your proxy provider and inform them of your problem. If you are not using either proxy server, follow these steps:

  1. In your Chrome, click on the three dots.

  1. After clicking, go to Settings and scroll down until you see something that says: Advanced. When you find it, click on it and scroll down to the system configuration.Err_Tunnel_Connection_Failed
  2. Then click Open Proxy Settings, and then click LAN in the Connection tab (tabErr_Tunnel_Connection_Failed.

  1. Then clear the Use a proxy server for the local network check box and select Automatically detect, then click OK.Err_Tunnel_Connection_Failed

After making the above changes, restart your computer and you should now be able to access the desired website without any problems.

If that doesn’t solve the problem either, move on to the next solution.

Solution 4: DNS Flash and new IP address assignment

Sometimes a conflict in your IP address can result in an Err_Tunnel_Connection_Failed error. If so, open a command prompt on your desktop and type the following command.

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To open the command line, open the Start menu and search for CMD or command line . Then enter the following commands in sequence.

ipconfig / enable
ipconfig /all
ipconfig /flushdns
ipconfig /renew

netsh int ip setnds
netsh winsock reset

ipconfig / update
ipconfig / update

Solution 5: Using VPN

As mentioned earlier, the failure of Err_Tunnel_Connection_Failed is due to a conflict in your IP.  If there is a conflict with an IP address, you can use a VPN and largely solve the IP problem.

If you’re wondering what a VPN is, you can read our previous articles on VPNs.

Solution 6: Refresh Browser

Many problems occur when using outdated and old versions of browsers. When the Err_Tunnel_Connection_Failed error occurs, it is a good idea to update your current browser.

If you want to upgrade your browser to a newer version. Then go to the Settings tab and about Chrome.

Make sure your browser is up to date. If not, make sure you are using the latest available version.

Fix Error Error_Tunnel_Connection_Failed Error – Chrome Configuration

Final reflections

Without a doubt, Err_Tunnel_Connection_Failed is a common error that Chrome users encounter. Like the general nature, the fix is pretty simple and almost similar to most Chrome bug fixes.

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