Fix – ERR_TUNNEL_CONNECTION_FAILED Error in Chrome

Google Chrome is one of the most widely used and preferred browsers as it gives a great browsing experience and is a Google product, after all. But with great powers comes great responsibility and when something is burdened with great responsibilities, the chances of errors and mistakes slacking off increase.

Chrome users have to face some errors every now and then. But it is nothing to worry about, and such errors can easily be solved. In this article, we will fix the ERR_TUNNEL_CONNECTION_FAILED Error in Google Chrome.

What is the ERR_TUNNEL_CONNECTION_FAILED Error?

This error occurs when Chrome is unable to establish a tunnel for the targeted website. If said in simple words, Chrome fails to connect to the internet. There may be many reasons behind this error, but the most common one is the use of proxy servers for connection or using a VPN.

However, you do not need to worry about the causes and reasons. We are about to tell you about the most suitable methods that can solve this problem. Most probably, you will have your solution in the first method. But we have more methods up our sleeves, just in case.

Fix – ERR_TUNNEL_CONNECTION_FAILED Error in Google Chrome

Let us now start with the first method:

Method 1 – Disable the Proxy Settings

Use of proxy servers is the most common cause of ERR_TUNNEL_CONNECTION_FAILED Error. If you are using a proxy server, then this method is surely going to help you. All that you need to do is disable the proxy settings. You can do so easily by unchecking a few boxes in the LAN settings under the Internet Properties section of your computer. Just follow the given steps if you do not know how to do it:

1. First, open the RUN dialog box by pressing the Windows Key + R simultaneously.

2. Type inetcpl.cpl in the input area and click OK.

3. Your screen will now show the Internet Properties window. Switch to the Connections tab and click on LAN settings.

4. A new LAN settings window will pop up. Here, it would helpful if you unchecked the Use a proxy server for your LAN option.

5. Also, make sure to checkmark Automatically detect settings. Once done, click on the OK button.

Restart your computer to apply the changes. Launch Chrome and check if the ERR_TUNNEL_CONNECTION_FAILED Error is gone. We are very sure that this method would have worked, but in case it didn’t, move on and try the next method that we have mentioned below.

Method 2 – Reset the Network Settings

By resetting the network settings, we mean flushing the DNS and resetting the TCP/IP of your computer. It is very likely that your problem of ERR_TUNNEL_CONNECTION_FAILED Error will be solved by using this method. Follow the given steps to perform the changes:

1. Search for the Command Prompt in the Start menu and click on Run as administrator option.

2. Once the command prompt opens, run the following commands:

Ipconfig /flushdns
nbtstat -r
netsh int ip reset
netsh winsock reset

Once the commands finish executing, exit the command prompt, and restart your computer. Open Chrome again and see if this method worked.

Method 3 – Change the DNS Address

The point here is, you need to set the DNS to automatically detect IP address or set a custom address given by your ISP. The ERR_TUNNEL_CONNECTION_FAILED Error arises when neither of the settings has been set. In this method, you need to set the DNS address of your computer to the Google DNS server. Follow the given steps to do so:

1. Right-click the Network icon available on the right side of your taskbar panel. Now click on the Open Network & Sharing Center option.

2. When the Network and Sharing Center window opens, click on the currently connected network here.

3. When you click on the connected network, the WiFi status window will pop up. Click on the Properties button.

4. When the property window pops up, search for Internet Protocol Version 4 (TCP/IPv4) in the Networking section. Double click on it.

5. Now the new window will show if your DNS is set to automatic or manual input. Here you have to click on the Use the following DNS server addresses option. And fill the given DNS address on the input section:

8.8.8.8
8.8.4.4

6. Check the Validate settings upon exit box and click OK.

Now close all windows and launch Chrome to check if you’re able to fix ERR_TUNNEL_CONNECTION_FAILED Error in Google Chrome.

Method 4 – Clear Browsing Data

If none of the above methods worked, then we suggest you try using other browsers to see if the ERR_TUNNEL_CONNECTION_FAILED Error is exclusive to Chrome only. If it is, then you should try clearing all the saved browsing data of your Chrome browser. Now follow the given steps to clear your browsing data:

1. First, click on the three dots on the top right corner of the browser window and select Settings. You can also type chrome://settings in the URL bar.

2. When the Settings tab opens, scroll to the bottom and expand the Advanced Settings section.

3. Under the Advanced section, find the Clear browsing data option under Privacy and security section.

4. Click on the Clear browsing data option and select “All time” in the Time range dropdown. Check all the boxes and click on Clear Data button.

When the browsing data is cleared, close, and relaunch the Chrome browser and see if the error is gone.

Method 5 – Reset Settings of your Chrome browser

Since the problem is with the Chrome browser, performing a reset of Chrome setting will surely help in resolving the issue. Here are the steps to reset settings of your Chrome browser –

1. First of all, click on the three dots on the top right corner of the browser window and select Settings. In the settings tab, scroll to the bottom and click on Advanced settings.

2. In the advanced section, please navigate to the Reset and Clean up section and click on Restore settings to their original defaults.

3. In the Reset settings window, click on the Reset Settings button. Once the reset is finished, relaunch the browser and check if this method worked.

Method 6 – Update Chrome browser

Using an older version of Chrome might also cause the ERR_TUNNEL_CONNECTION_FAILED Error. It would be best if you tried checking for a newer version and updating the browser. Update your browser and check if the error is gone for good. Here is how you can update the Chrome:

1. First, click on the three dots on the top right corner of the browser window and go to the Help section. Under this section, select About Google Chrome.

2. The About Chrome window will open and it will start looking for available updates automatically. If any new version is available, it will give you an option to update.

3. Update the browser and restart to see if this worked for you.

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In this article, we have mentioned some of the best methods to fix the ERR_TUNNEL_CONNECTION_FAILED Error. Some of the methods focus specifically on Chrome, while others are related to the TCP/IP and DNS settings. You are free to try any or all of the methods to solve the ERR_TUNNEL_CONNECTION_FAILED Error. If you face any problem in any of the above-mentioned methods, comment down below, and we will get back to you.