SSO fails to log in The authentication mechanism is unknown

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Article ID: 48833

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Updated On:

Products

APPLICATION DELIVERY ANALYSIS SUPERAGENT CA Infrastructure Performance CA NetVoyant (NetQoS / NV)

Issue/Introduction

Description:

ISSUE

When SSO Troubleshooting is enabled, the following error is seen:

Exception Occurred
Message:
The authentication mechanism is unknown.

DETAILS

SSO is configured to use LDAP Authentication. All information has been verified as correct in the SSO Configuration Tool. The "Test LDAP Authentication" button in the SSO Configuration Tool itself is always successful. However, when users attempt to log on via the web, they get the error "Unable to Authenticate User."

Solution:

This will occur if the Application Pool for the SSO web service is not set to the Network Service user. Use the following procedure to resolve this:

  • Go into IIS Manager under Administrative Tools
  • Expand "Application Pools"
  • Right click on SingleSignOn and go to Properties.
  • Go to the "Identity" tab.
  • Set the "Application pool identity" to "Network Service"
  • Reset IIS by running the command "iisreset"

Environment

Release: SAMCNH99000-9.2-NetQoS-SuperAgent-Management Console-Hardware
Component: