How to Fix Err Tunnel Connection Failed in Chrome

1. How to Fix Err Tunnel Connection Failed in Chrome Tell us, what is that one thing that is always with you and solves all your queries? No! Not your best friend. We are talking about Google Chrome, your virtual friend. This widely famous web browser is known to facilitate our interaction with relevant mediums (websites) through which we can gain information, learn hacks, expand our knowledge, explore creativity, and so much more. Sometimes, you may come across err_tunnel_connection_failed chrome when surfing through the websites. This error is usually exhibited because Chrome was unable to establish a secure connection with the website over your proxy server or VPN. While the error may not be critical, it is surely a concerning matter that should be addressed right away. Otherwise, it can disrupt browsing sessions, and user experience, delay important tasks, and cause inaccessibility to access the websites and their information. Read our insights and learn how to fix the error tunnel connection failed. What Does Tunnel Connection Fail Mean?

2. Simply put, the error tunnel connection failed means Chrome failed to establish a secure connection between you and the website you were trying to access. There are a few possible reasons for the occurrence of this error. It can be due to network configuration issues, antivirus or firewall blocking your connection, uncleared cache, or cookies issues. Although, this issue can be resolved when you undertake certain measures, which we will be discussing in the next pointer. Also Read: Fix localhost sent an invalid response ERR SSL_PROTOCOL_ERROR How to Fix err_tunnel_connection_failed? Method 1 - Checking & Disabling Proxy Settings Method 2 - Update Network Settings Method 3: Changing DNS Address Method 4: Clear Browsing History Method 5: Conflicting Browser Extension Method 6: Reset Chrome Settings

3. Method 7: Update Chrome Browser *Please note: Do not experiment with all the methods. Use a technique and restart your computer to check the error is gone. If it continues to persist, try another approach. Method 1 - Checking & Disabling Proxy Settings Before jumping to disabling the proxy server. Let’s first understand what a proxy server is. The proxy server is known to be a bridge of communication between you and the internet. However, if there are any issues with the server settings, it may lead to err_tunnel_connection_failed. Although, you can solve this issue by turning on your computer and modifying proxy settings. Step-1: All you need to do is hold the Windows key + R, which will display a small window known as ‘Run.’ Step-2: In the window, you will see a small box. Input ‘inetcpl.cpl’ in that box and click on ‘OK.’ Step-3: Pressing ‘OK’ will redirect you to another window called ‘Internet Properties.’ Click on the ‘Connections’ tab at the right corner of the window. Step-4: After clicking on the ‘Connections’ tab, scroll down to find the ‘LAN Settings’ tab & click on it. Step-5: Later, you will be redirected to the ‘LAN Settings’ window, wherein you have to scroll down and unselect ‘Use a proxy server for your LAN’ and select ‘Automatically detect settings’ at the top if it is not selected.

4. Step-6: Finally, press ‘OK’ and restart your device to ensure the error is resolved. Also Read: A Guide to Fix RDP Error: An Internal Error has Occurred Method 2 - Update Network Settings If the above technique does not seem to show a positive result, update your network settings. Step-1: Head to your computer and click on ‘Windows’ to type ‘Command Prompt.’ As soon as the results appear, click on the ‘Run as administrator’ second option shown on the left side of the screen. Step-2: Upon clicking on Run as administrator, you will be redirected to a window called ‘User Account Control’, wherein you have to input the credentials and click on yes to open the ‘Administrator Mode.’ Step-3: After adding the details, you will notice a ‘Command Prompt’ window popping up on your screen. Input the below-mentioned commands into the ‘Command Prompt’ window one by one. IPCONFIG /FLUSHDNS NBSTAT -R

5. NETSH INT IP RESET NETSH WINSOCK RESET Lastly, you need to restart your device to ascertain that err_tunnel_connection_failed chrome is gone. Also Read: What is 406 Not Acceptable and How to Fix It? Method 3: Changing DNS Address You can leverage this next method if the last didn’t seem to resolve the error. Generally, you are provided with a default DNS server by your Internet Service Provider (ISP). Although you may receive the err_tunnel connection_failed message when your DNS server is configured differently. Step-1: Head to the control panel of your PC and select the ‘Network and Internet’ icon. Step-2: After clicking on the icon, a window will appear, including the ‘Network and Sharing Center’ option. Click on that option. Step-3: A pop-up will appear on your screen, including a ‘Connections’ button currently active. Click on it to check your active network. Step-4: You will get redirected to the ‘Ethernet Status’ window. You will find the ‘Properties’ tab below; click on it.

6. Step-5: You will be then redirected to ‘Ethernet Properties,’ which will include ‘This connection uses the following items:’ Scroll the list to determine the ‘Internet Protocol Version 4 (TCP/IPv4)’ option. Step-6: Double-tap on the Internet Protocol Version 4 (TCP/IPv4) option. A pop-up window will appear on your screen, which will include a tab, ‘General.’ Step-7: Continue with the ‘General’ tab and head below to check whether or not you have selected DNS ‘Use the following DNS server address.’ If yes, great! But if not, select it immediately and add the ‘Google public DNS server address.’ Public DNS Server Address. Preferred DNS Server 8.8.8.8  Alternate DNS Server 8.8.4.4  Finally, tick on ‘Validate Settings’ Upon Exit and press ‘OK.’ Restart your computer to verify there is no sign of tunnel connection failure in Chrome. Also Read: How to Fix the 504 Bad Gateway Timeout Error? Method 4: Clear Browsing History In case when your device is not at fault, you may look around for other possible reasons for the error, which in this case is the

7. browser. You may try accessing the desired website from a different browser Bing, Mozilla Firefox, Edge, etc. If the website seems to open in another browser, it’s a sign for you to clear your browsing history. Step-1: Start by opening a new browser window and click on the ‘Three Dots icon’ at the top right corner. Step-2: A list of options will appear on your screen. Scroll down to click on ‘Settings.’ Step-3: After you have opened the ‘Settings’ option, click on ‘Privacy and Security’ Step-4: Click on the ‘Clear Browsing Data,’ which will redirect you to a new window including multiple options you can delete from your browsing history. Now, all you have to do is unselect the options you don’t want from the drop-down menu and click the ‘Clear Data’ button to take action. Restart your Chrome after cleaning the browsing history. Search for the same website, and you won’t find any error message. However, if you still do, try using the next way. Also Read: How to find out when a webpage was created? Method 5: Conflicting Browser Extension

8. Step-1: This method is fairly simple. All you need to do is repeat the process of opening the Chrome browser and selecting the ‘Three Dots icon’ in the top right corner of the window. Step-2: Next, go to ‘Extensions’ and select ‘Manage Extensions’ from the sub-menu. Step-3: Once you click on the tab, you will see a list of extensions you are currently using. Step-4: Disable each of them gradually. You will find the ‘Disable toggle’ right beside each extension. Step-5: After the extensions are disabled, get back to the website to make sure the error is gone. This also shows there was a specific extension causing the problem. Now you have to check which extension was causing the problem and eliminate it right away. After the extension is deleted, enable the previously disabled extensions and view the website again to ensure the error is not back. Method 6: Reset Chrome Settings Step-1: Start by opening your browser and clicking the ‘Three Dots icon’ at the window's top right corner. Step-2: Next, select ‘Settings’ from the menu bar that appears when clicking the ‘Three Dots icon’. Step-3: After tapping on ‘Settings’, head below to find ‘Reset Settings.’ Click on the same.

9. Step-4: You will see a bar stating, ‘Restore settings to their original defaults.’ Select the bar. Step-5: You will find a pop window right on your screen. This window will have ‘Reset Settings.’ Tap on it to complete the reset process. Repeat the same step as you would do after every method. Open the website to ensure the error is resolved. Also Read: How to Ensure if a Website is Secure? Top Factors to Consider Method 7: Update Chrome Browser Sometimes, the error is related to the browser not being up-to- date. Although, it can be simply resolved by updating the browser. Step-1: Open Chrome and click on the ‘Three Dots icon’ at the right side of the window. Step-2: Next, open ‘Help’ from the menu bar, which is exhibited when you tap on the ‘Three Dots icon’. Step-3: Upon opening the ‘Help,’ select ‘About Google Chrome’ from the sub-menu bar. Step-4: You will be redirected to a new window that will display whether or not Chrome is updated. If it is out-of-date, look for the latest version, which is generally highlighted by Chrome. Tap on the ‘New Version’ to update.

10. Once the update is completed, you know what to do. Visit the same website, and we hope this time the error is gone. Conclusion We hope these methods will help you troubleshoot the problem. However, if you continue to see the error even after trying all the methods, contact your ISP (Internet Service Provider) for further assistance. Source https://www.hostitsmart.com/manage/knowledgebase/279/How-to-Fix-Err- Tunnel-Connection-Failed-in-Chrome.html