Unable to connect to the Intranet using Internet Explorer

Unlike other browsers, Internet Explorer (IE) may require that the first authentication method used is NTLM. The default authentication method for IIS is Kerberos.

Note: This is only for Windows Authentication.

To switch the authentication method so that IE can also authenticate properly, use the following steps:

  1. Navigate to IIS on the web server
  2. Select the web site from the list on the left
  3. Double-click Authentication as seen in the following image: 
  4. Highlight ‘Windows Authentication’
  5. Click ‘Providers’ from the right nav as in the image below: 
  6. Select NTLM from the list as shown in the image below: 
  7. Click ‘Move up’
  8. Click OK to save this change


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