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Microsoft Windows security auditing Event ID 6273 - Sign-on Splash page external RADIUS server

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Authentication will fail with an Event ID 6273 "Authentication was not successful because an unknown user name or incorrect password was used." when a RADIUS shared secret mismatch exists between your Dashboard configuration and the RADIUS clients configured on your NPS server. NPS returns this error because the XOR function used in hashing together the shared secret and Active Directory credentials outputs a value unrecognizable by the NPS server.

 

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ID: 1730

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