Windows 10: The Kerberos protocol encountered an error while validating the KDC certificate during...

Discus and support The Kerberos protocol encountered an error while validating the KDC certificate during... in Windows 10 Gaming to solve the problem; Hello,I have an issuing CA, an offline root CA, and another legacy, shouldn't be used anymore online root CA. I am utilizing the new CA infrastructure... Discussion in 'Windows 10 Gaming' started by Brandon Taylor3, Nov 16, 2022.

  1. BRANDON TAYLOR3
    Brandon Taylor3 Win User

    The Kerberos protocol encountered an error while validating the KDC certificate during...


    Hello,I have an issuing CA, an offline root CA, and another legacy, shouldn't be used anymore online root CA. I am utilizing the new CA infrastructure to provide smartcard logon options for MFA. And it's working great for on-site devices and domain-joined devices over VPN. However, the issue I'm encountering happens when anyone tries to logon to a remote computer via RDP from a non-domain joined device. The error I receive is:The Kerberos protocol encountered an error while validating the KDC certificate during smartcard logon.I have looked at certutil -dcinfo and verify, but all comes back

    :)
     
    Brandon Taylor3, Nov 16, 2022
    #1
  2. MARSHALL_99
    Marshall_99 Win User

    Check for Valid Kerberos Ticket

    Hello everyone,

    I'm looking to be able to generate a command klist to check and see if a kerberos ticket is valid.

    If the ticket is valid return 1 if a ticket is invalid return something a 0.

    We are moving from Linux to Windows for this process but I have yet to find any documentation regarding how you would do this.

    I would believe that a sample or model would be everywhere.

    Regardless does anyone have some suggestions on getting this accomplished.

    Regards,

    Jonathan
     
    Marshall_99, Nov 16, 2022
    #2
  3. GREG CARMACK - WINDOWS MVP 2010-2020
    Greg Carmack - Windows MVP 2010-2020 Win User
    Valid Certificates Rejected

    Hi Richard -

    See if this helps:

    https://www.c-sharpcorner.com/article/this-cert...

    https://www.ssls.com/blog/how-to-fix-google-chr...

    https://www.technipages.com/ie-the-security-cer...

    https://answers.microsoft.com/en-us/ie/forum/al...

    https://www.entrust.com/knowledgebase/ssl/how-d...

    https://techcommunity.microsoft.com/t5/office-3...

    Feel free to ask back any questions. Please report back results for all steps given so I know what else to suggest if necessary.

    ______________________________________________

    Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.
     
    Greg Carmack - Windows MVP 2010-2020, Nov 16, 2022
    #3
  4. JAV1356
    jav1356 Win User

    The Kerberos protocol encountered an error while validating the KDC certificate during...

    Validate server certificate

    I'm a little more advanced now. It's no help to have the certificate downloaded and validated if WP8 doesn't support the authentication protocol EAP-TTLS, and it' doesn't. So you can't connect to the wifi network of most universities in Europe. Unvelievable
    WP8!
     
    jav1356, Nov 16, 2022
    #4
Thema:

The Kerberos protocol encountered an error while validating the KDC certificate during...

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