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ERR_TUNNEL_CONNECTION_FAILED

This error is a simple connection error which you will encounter while browsing internet in Google Chrome. Error ERR_TUNNEL_CONNECTION_FAILED occurs when Chrome is unable to render the proxy response for some sites. Error ERR_TUNNEL_CONNECTION_FAILED is the most common error experienced by Chrome users. Other possible reasons for the occurrence of this error could be:

  • Change in the LAN settings.
  • Browsing data and cache may block your connection.
  • Proxy address.

Fixing ERR_TUNNEL_CONNECTION_FAILED Error

Method 1: Change Network Settings

  • In Chrome click on the More Options menu and choose Settings.
  • Go to Show advanced settings.
  • Go to Network section and click on Change proxy settings.
  • Click on LAN settings in connections tab.
  • Check the box that said Automatically detect settings.
  • Uncheck Use a proxy server for your LAN and click OK.

  • Restart your PC.

Method 2: Reset Network Settings

  • Type cmd in the search box and then right click on Command Prompt and select Run as administrator.
  • Execute the following commands one by one:

ipconfig /flushdns

nbtstat –r

netsh int ip reset

netsh winsock reset

  • After doing so Restart your computer.

Method 3: Clear Browser Cookies & Cache Data

  • Open Google Chrome and type chrome://settings/cookies in the search bar and hit Enter.
  • Now click the Remove all and then click Done button.
  • Now check all the options inthe box then click on the Clear browsing data.
  • Close the Google Chrome browser and re-open the browser for checking the error.

Method 4: Change DNS

  • Right click on the network option which you will see on the bottom right corner of your screen and select Open Network and Sharing Center.
  • Click on the internet connection you are using.
  • Click on Properties.
  • Double-click on Internet Protocol Version 4 (TCP/IPv4) to change the DNS server.
  • Click on Use the following DNS server addresses:and set the values as follows in the dialog box:

Preferred DNS server: 8.8.8.8

Related:   Windows Store Error Code 0x80072efd

Alternate DNS server: 8.8.4.4

  • Press OK and exit.

Method 5: Update or Reinstall Chrome

  • Open Chrome.
  • In the top right, click on the three vertical dots button to open menu.
  • Go to help > About Google Chrome.
  • Google Chrome automatically detects if there’s an update available:
    • If yes, follow the on-screen instruction to finish the update.
    • If no, delete Chrome and reinstall it.


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By | 2018-08-08T00:00:00+00:00 August 8th, 2018|Common Errors, Computer Science, Network Issues|0 Comments