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HTTP Error 401.2 - Unauthorized message is encountered when accessing the App Portal Site after an upgrade


When accessing the App Portal site after an upgrade the following error might be encountered:

HTTP Error 401.2 - Unauthorized

You are not authorized to view this page due to invalid authentication headers.


This errors occurs if Windows Authentication within Internet Information Services (IIS) is disabled


To resolve the issue, Open the Internet Information Services Manager and enable Windows Authentication on the ESD site on the App Portal Server.

Related KB Articles

Authentication error when attempting to enable Windows Authentication in IIS
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Last update:
‎Jul 16, 2018 11:04 PM
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