WHfB - sign-in failed. Contact your system administrator and tell them that the KDC certificate could not be validated. Additional information may be available in the system event log."

Thomas 0 Reputation points
2024-10-11T12:24:27.5133333+00:00

Hi

This has troubled me for weeks. I spent hours trying to find anything helping solving this but there is very little information on this error.

sign-in failed. contact your system administrator and tell them that the kdc certificate could not be validated. additional information may be available in the system event log."

Log says Adit failure 0xC000006D 0xC000040D

Windows 10 Security
Windows 10 Security
Windows 10: A Microsoft operating system that runs on personal computers and tablets.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
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  1. Zunhui Han 2,315 Reputation points Microsoft Vendor
    2024-10-11T15:37:14.5433333+00:00

    Hello,

    Thank you for posting in Q&A forum.

    Here is a thread with a similar issue to yours. I suggest you try the methods there to see if it can solve the problem.

    https://learn.microsoft.com/en-us/answers/questions/1135487/whfb-sign-in-failed-contact-your-system-administra

    I hope the information above is helpful.

    Best regards

    Zunhui

    ============================================

    If the Answer is helpful, please click "Accept Answer" and upvote it.


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