How to Fix ERR TUNNEL CONNECTION FAILED error in Chrome on Windows 10

ERR TUNNEL CONNECTION FAILED Error in Chrome browser most of the time is seen on PCs that use a VPN and also Proxy Severs in order to connect to the Internet. 

The error can be such a pain because it can bring every task you had on the schedule for the day to a halt. You don’t want to get involved or run into it because you will hate that moment. However, we have made some analysis and found out some solutions to this error message. In this article, I am going to show you each and every step to fix Err Tunnel Connection Failed Error in Chrome on a computer running on the Windows operating system.


VPN (Virtual Private Network) or Proxy servers always tend to protect or in other words try to hide the identity of your computers by cutting out important header data from user requests to access websites.

The two have the ability to hide your IP address that could be used to determine the exact location you are trying to surf the internet. This problem does not occur regularly because most of the times it does not cause any issues. Most users have been able to connect to websites without any problems. But if it happens to you that you run into it, some measures have to be taken in action and resolve the error as soon as you can.

At times there can be an inconsistency amid expected data and the provided data. If there is such a discrepancy then eventually it will result in the Err Tunnel Connection Failed Error in Chrome browser.

In less technical terms, ERR TUNNEL CONNECTION FAILED Error in Chrome can be said to be the occasional incapability of the Chrome browser to determine a VPN or Proxy connections on your Windows computer.


Well, there are many ways to fix this issue but the easiest way to handle the Err Tunnel Connection Failed error in Chrome is to disable the Proxy server on your PC and then reload the webpage or sites that you were trying to access before you were stopped by the error.

But there are occasions where you might just want to fix the error and continue using the VPN or Proxy server for you to connect to the internet. If that is the case with you then don’t worry, we’ve got your back. You can try solutions 2 to 5 that we have listed below in order to fix Err Tunnel Connection Failed Error in Chrome.

Fix 1: Disable Proxy Server to fix ERR TUNNEL CONNECTION FAILED

This fix is only suitable for those of you who want to connect to the internet directly. You can use a mobile host-spot, a modem, or any source of internet other than the VPN or Proxy connections.

Therefore, in order for you to disable the Proxy Server, follow the steps below.

  1. First of all, make sure that the Chrome browser is up and running
  2. Now click on the 3-dots on the top right corner (Chrome menu icon) of your screen and then click on Settings in the drop-down menu that shows up.
  1. Next, scroll down to the bottom of the page on the Settings screen, and then click on Advanced.
  2. Scroll down until you find the “System” section then later click on Open Proxy Settings.
  3. Afterward, click on the LAN Settings button that is located under the Connections tab on the Internet Properties screen. Doing this will open the LAN Settings screen.
  4. Uncheck the Use Proxy Server for LAN option
  1. Check the option to automatically detect settings and then click on OK.

After the above settings, you will need to restart your PC and after that, you should be able to access the webpage swiftly without running into the Err Tunnel Connection Failed Error in Chrome browser.

Fix 2: Check Proxy IP Address, Password and Port

If you want to clear this error and still continue to use Proxy connections or a Virtual Private Network, the first thing you should do is to make sure that your computer is using the correct IP Address, Password, and Port for that specific Proxy internet connection on your PC.

It is also important to make sure that you are using the correct Username and Password to sign in to the proxy.

Therefore, you will need to do the following:

  • Check the IP Address. For you to check the IP Address that you are using, first open your Chrome browser. Then try to access another website using the Proxy server. If you manage to access the other website then that means that the IP Address is right.
  • Check the Port: Most of the time many proxies often use Port 80. But there is a tendency that some proxy providers may be using other Ports. It is, therefore, a good habit to change the ports to 80 for high performance.
  • Check the User Name/Password: Confirm the credentials you are trying to use. The two should always be known to you.

Fix 3: Disable Automatically Detect Settings

An automatic setting sometimes is good to adopt more so for non-tech savvy users. But even though they are good that could not be the case when it comes to fixing the Err Tunnel Connection Failed Error in Chrome. See, when you set the browser to automatically detect the VPN or proxy settings, what it does is that it goes ahead and reset the settings as defined in the operating system.

If you are using a Windows operating system on your computer, it is the high time I tell you the painful truth. Proxy settings were not designed to be used on the Chrome browser. To be more precise, they are optimized better for Internet Explorer or Edge browser. Not for Google’s Chrome browser.

If you go ahead and turn off the automatically detect settings option, you will be able to allow the Chrome browser to define and use its own settings or even try and use the default settings that have been defined by the proxy owner.

To do this;

  1. Open the Chrome browser and then click on the 3-dots Chrome menu icon
  2. Scroll down and select Settings
  3. Once you are on the Settings screen, navigate down to the bottom, and then click on Advanced.
  4. Again scroll down a little more and then click on Open Proxy Settings option. It is located under the “System” section.
  5. On the next window, click on the Connections tab (in case you are not already there) and click on the LAN Settings button.
  6. Now uncheck the automatically detect settings option on the LAN Settings screen and finally click on OK.

Reboot your PC and then check to see if you are still getting Err Tunnel Connection Failed Error in the Chrome browser. If the error is still showing up, proceed with solution number four below.

Fix 4: Reset TCP/IP and Flush DNS

If you reset the TCP/IP and Flush DNS, you could manage to fix the Err Tunnel Connection Failed Error in the Chrome browser without any difficulty.

  1. Hit the windows button on your keyboard to open the start menu
  2. In the search bar, type the phrase Command Prompt
How to Fix ERR TUNNEL CONNECTION FAILED error in Chrome on Windows 10 -use cmd
  1. From the results that appear, right-click on command prompt and then run or open as administrator
  2. Now type the following Commands in the Command Prompt window one by one (In the same order). Hit the enter key after each command.
  3. netsh winsock reset
  4. netsh int ip reset
  5. ipconfig /release
  6. Then type ipconfig /renew
  7. ipconfig /flushdns
  8. ipconfig /registerdns
  9. When you are done, reboot your PC so that the changes can take effect.

No check to see if you are still getting Err Tunnel Connection Failed Error in the Chrome browser.

Fix 5: Contact Proxy Provider for Support

Contacting your Proxy Provider should be the last move you should take if the above fixes did not get you through solving the error. If you are still unable to fix this issue, you should try visiting the website of your Proxy Service provider and then submit a help request. 

If your Proxy provider has a good service provider then they should be having trained support staff that can help you fix this error.

There are cases where you might get the same error message even if you are not using a VPN or a Proxy server. The question is, how do you fix the error?

I am going to take you through some of the best practices you should adopt for that case.

Option 1: Try using a VPN connection

With any connection, there are instances when the network which your PC is logged on might have blocked access to that particular website you are trying to open. To fix it, one of the methods you can try is to use a VPN (Virtual Private Network?) connection. Once you make sure that you have connected using VPN, you can try to open that website once more and then see if you can now access it or the Err Tunnel Connection Failed Error in Chrome browser error still pops up.

Option 2 – Try clearing browser data

Often, browser data can conflict will the loading of some websites, and clearing the browser data happens to be a solution to this error.

This conflicting data that interferes with the loading of the website triggers errors like ERR_TUNNEL_CONNECTION_FAILED. Therefore, try to clear your browser’s data.

This might be a very basic solution but it works in fixing this kind of error in Google Chrome.

Just follow the steps below to clear the data in your browser.

  • Open your Google Chrome browser.
  • Tap the Ctrl + H keys on your keyboard. This will open a new panel that will allow you to delete the browsing history and other cached data in your browser.
  • Afterward, select or checkmark every checkbox that you see and then click on the Clear browsing data button.
  • You can now restart your computer, restart the Chrome browser and then check to see if you can now open any website or not.

Option 3 – Get rid of any conflicting browser extensions

Some sites you have been visiting could have asked you to install extensions to your Chrome browser that might be conflicting with the normal functioning of the Chrome browser.

Such extensions could cause or trigger the error i question.

Realizing this can be hard because you might tend to assume that those extensions are supportive components to enhance your browser. However, it turns out to be the opposite.

In order to get rid of any conflicting browser extensions and perhaps fix the ERR_TUNNEL_CONNECTION_FAILED error, you might need to follow the following steps.

  1. Open Chrome and then press Alt + F keys on your keyboard.
  2. Head over to more tools then click on Extensions in order to look for any suspicious browser extensions or toolbars.
  3. Chrome will also give you a hint on any extensions that might cause trouble
  4. If you find any, click the Recycle bin and then select Remove.
  5. Close and restart Chrome again and then press Alt + F keys on your keyboard once more.
  6. Proceed to On Startup and mark Open a specific page or set of pages.
  7. Now it is time to check if the browser hijacker is still active. To do this, click on Set pages, if it is active, overwrite the URL.


If it happens that removing the browser extensions or toolbars did not work, you can also try to reset your Google Chrome browser.

  1. To reset the browser, open Google Chrome and then tap the Alt + F keys.
  2. Afterward, click on Settings.
  3. Now scroll down until you can find the Advanced option, when you see it, click on it.
  4. After selecting the Advanced options, go to the “Restore and clean up” option, click on the “Restore settings to their original defaults” option in order to reset Google Chrome.
  5. Now restart Google Chrome and check if you managed to resolve the issue.

Concluding Lines

The above fixes should be able to resolve the ERR_TUNNEL_CONNECTION_FAILED error in the Chrome browser. If they were not of help and your computer has other system-related issues, then there is a one-click method you can use to try and fix it. This method is known as Advanced System Repair.

You could use this tool to repair any corrupted registries and then optimize your computer’s overall performance.

Apart from that, this tool can also clean out your computer for any junk or corrupted files that help you eliminate any unwanted files from your system.

This is basically a fix that is within your grasp. It is easy to use because it is user-friendly.

For the complete set of steps and instructions in downloading and using it, simply refer to the steps below.

Perform a full system scan using ASR. To do so, follow the instructions below.
  1. Turn on your computer. If it’s already on, you will have to reboot
  2. When the screen lights up, enter the BIOS settings. However, if Windows pops up simply reboot your PC and then try again. Once you’re on the BIOS screen, press or tap the F8 key repeatedly. This is so that you can open the Advanced Options screen.
  3. Now navigate to Advanced Option using the arrow keys and then select Safe Mode with Networking then hit enter.
  4. Your computer will restart loading Windows into Safe Mode with Networking.
  5. When your PC restarts, hit Windows + R keys on the keyboard in order to open the Windows run box.
  6. If done correctly, Type in this ( URL address in the Run dialog box and then tap Enter or click OK.
  7. After that you press the Enter key, the program will be downloaded to your computer. Wait for the download to finish and then open the launcher to install the program.
  8. Once the installation process is completed, run ASR to perform a full system scan.
  9. After the scan is completed click the “Fix, Clean & Optimize Now” button.

That is it. All the trouble should be fixed.

Have any questions or stuck somewhere? Let us know so we can help you out and you can also check this article on another chrome error you might encounter.

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