6 Ways to Fix ERR_ICANN_NAME_COLLISION in Google Chrome


Besides being one of the most widely used web browsers, Google Chrome also delivers a variety of error messages. And the ERR_ICANN_NAME_COLLISION is one of them. Though most of the error pages, including the ERR_ICANN_NAME_COLLISION are not because of Chrome actually. These errors occur due to some external issues like unstable internet connectivity, faulty DNS or internet settings, unresponsive website server, etc. Hence you can’t blame just Google Chrome just because it is providing some error messages to your instead of the web page that you are trying to access.

Anyways, in this fixing guide, I am going to discuss the solutions for the ERR_ICANN_NAME_COLLISION Google Chrome error. If you are facing this error continuously on your Chrome then stick around to this fixing guide and try the various ways I have mentioned here in order to rectify this issue. Let’s get started.


The ERR_ICANN_NAME_COLLISION error page mentions the following message:

The site can’t be reached, This site on the company, organization or school intranet has the same URL as an external website. Try contacting your system administrator. ERR_ICANN_NAME_COLLISION.

If this error page is popping up in your Chrome tab upon accessing a certain web page, that means there is an error with the private namespace This issue is caused due to some glitch in the private namespace or a random redirection is taking place which is redirecting Chrome to a completely different and wrong proxy server.


Based on the various possibilities of its cause, there can be a number of different ways to fix the issue. And here are those fixes.

Fix 1: Check the Registry setting

To begin with, let’s see if the registry setting of the TCP/IP keys is proper or not. To check:

  • Search for Registry Editor and open it.
  • Now, navigate to the following path:
  • Inside the DataBasePath key, double-click on the Default string value to open its edit window.
  • Here, check its Value field has the following path:

Note: If the DataBasePath key is not present, right-click on the Parameter key, and select New > Key. Name the key DataBasePath.

Fix 2: Reset the Hosts File

The Windows host file is a sample FILE used by the TCP/IP protocols of the OS to map the IP addresses to the host names. There can be issues with this file and hence resetting this file can be helpful.

  • Open the Windows Rxplorer and navigate to the following path:
  • Rename the host file to host.bak or something else as per your convenience.
  • Now, open Notepad and paste the following text:
    Copyright (c) 1993-2009 Microsoft Corp.


    # This is a sample HOSTS file used by Microsoft TCP/IP for Windows.


    # This file contains the mappings of IP addresses to host names. Each

    # entry should be kept on an individual line. The IP address should

    # be placed in the first column followed by the corresponding host name.

    # The IP address and the host name should be separated by at least one # space.


    # Additionally, comments (such as these) may be inserted on individual

    # lines or following the machine name denoted by a ‘#’ symbol.


    # For example:


    # rhino.acme.com # source server

    # x.acme.com # x client host

    # localhost name resolution is handle within DNS itself.

    # localhost

    # ::1 localhost
  • Save the file by the name host.txt.
  • Rename the save file and remove the .txt extension.
  • Now, move the file to the directry where you renamed the original host file i.e. C:\Windows\System32\drivers\etc

Once done, restart your PC and see if the issue is fixed or not.

Fix 3: Disable the Proxy

Proxy servers can also cause the ERR_ICANN_NAME_COLLISION error in Google Chrome. Hence you should consider disabling the proxy if you are using one. To disable the Proxy:

Disable Proxy on Windows and Mac

  • Open Chrome Settings by clicking on the kebab menu (3-dot menu).
  • Click and expand the Advanced section.
  • Go to System > Open your computer’s proxy settings and this will open the proxy settings on yur PC whether you are on Windows or Mac.
  • You will be on the Proxy settings page on your Window PC. Here, toggle off the Use a proxy server switch.
  • Similarly on the Mac uncheck all the proxy boxes and click on OK.

Once done, try to access the web page again and see if the ERR_ICANN_NAME_COLLISION error still exists.

Fix 4: Flush Chrome DNS cache and Socket Pools

There is a slight chance that Google Chrome is suffering from corrupted cache files and hence clearing the DNS cache and Socket Pools may help. Here’s how to flush DNS cache and Socket pools.

  • Open Google Chrome and enter the following address in the address bar:
  • Select DNS from the left and click on Clear host cache option to clear the Chrome DNS cache.
  • Now, go to Sockets section from the left pane and click on the Flush socket pools option to flush the socket pools.
  • Finally, restart Chrome and see if the issue is fixed.

Fix 5: Clear system’s DNS cahe

Apart from Chrome’s DNS cache, the system stores its won DNS cache files and their corruption can also cause this problem. So consider clearing the DNS cache of the OS as well. To do so:

Clear DNS Cache on Windows

  • Search and open Command Prompt as administrator.
  • Now, execute the follwoing commands one by one:
    • ipconfig/flushdns
    • ipconfig/release
    • ipconfig/renew
  • Now close the command prompt and restart your PC.

Clear DNS Cache on Mac

  • Open Finder.
  • Go to Applications > Utilities > and open the Terminal app.
  • In the terminal window, run the following commands:
    • dscacheutil -flushcache
    • sudo killall -HUP mDNSResponder
  • Finally, close the terminal app and restart your Mac.

Once the DNS cache is cleared, relaunch Google Chrome and see if the issue is fixed.

Fix 6: Remove conflicting Chrome Extensions

Chrome’s support for 3rd-party extensions expands its functionality to a whole new level. These extensions are intentionally for improving the user experience of Chrome and to add new features. But in some cases, these extensions can also interfere with the normal functioning of the browser. Also, if there are extensions from some unreliable source then the chances become high that those extensions are the root cause of the ERR_ICANN_NAME_COLLISION error. So consider disabling/removing the extensions.

  • Click on the menu on the top right and go to More Tools > Extensions. Alternately, you can also visit the Extensions page by entering the following address: chrome://extensions/
  • Here you’ll see all the extensions that you have installed on your Chrome browser. Toggle the switch of each extention to off manually. Once done, open the browser and see if you’re able to access the wepage.

If you were able to access the webpage after disabling the extensions then some faulty extensions are the root cause of the error. You will have to manually toggle each one off to find out the faulty one. once identified, click on the Remove button to remove that extension.

Bottom Line

So, here comes the end of this fixing guide. The ERR_ICANN_NAME_COLLISION is a clear indication that the web address Chrome is trying to access is actually either being redirected to some other wrong server or maybe due to some glitch in the private namespace. In the majority of the cases, this gets solved by solutions like clearing the DNS caches and fixing the faulty registry settings on Windows. However, in some cases, this issue can extend a little far and a solution like resetting the host file on Windows, or removing the faulty chrome extensions will help.

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Posted by
Bhanu Pratap

Hi! I am Bhanu Pratap, co-founder of Yorker Media Group. A die-heart fan of tech and keeps track of every little happening of the same. When not writing, I usually keep myself busy on YouTube making and exploring new and awesome tech content.

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