Domain Controller Kerberos Pre-authentication Failed
If TGS issue fails then you will see Failure event with Failure Code field not equal to 0x0. This event is logged on domain controllers only and only failure instances of this event are logged.
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The password for this account has recently been changed and correlates with the start of the errors.
Domain controller kerberos pre-authentication failed. Pre-authentication types ticket options and failure codes are defined in RFC 4120. This can happen because the wrong certification authority CA is being queried or the proper CA cannot be contacted in order to get domain controller authentication certificates for the DC. Certificate information is only provided if a certificate was used for pre-authentication.
Pre-authentication types ticket options and failure codes are defined in RFC 4120. When a Kerberos pre-authetication fails event ID 4771 is logged. This error can help you to more quickly identify smart-card related problems with Kerberos authentication.
KDC has no support for the PADATA type pre-authentication data. This log data gives the following information. The server is a windows 2008 Standrd edition 64 bit and its a additional Domain controller.
Event Details Domain krbtgtxxx-abc Event Code 16 SID S-1-5-21-1912586522-3507380574. This event generates only on domain controllers. The domain controller sends back the authentication ticket and a session key thats been encrypted with the clients personal key in this case the users password.
0x10 KDC has no support for PADATA type pre-authentication data. For more information see Table 5. The server that the Kerberos Authentication Service is failing against is itself the local host.
Kerberos issues an authentication ticket when a client first authenticates itself to the domain controller. Workstation will contact a domain controller DC and try to obtain a Kerberos ticket for the user. - The scheduled tasks using this account are working correctly.
If the ticket was malformed or damaged during transit and could not be decrypted then many fields in this event might not be present. Smart Card logon is being attempted and the proper certificate cannot be located. In the Certificate Templates Console right-click the Domain Controller Authentication Kerberos or the name of the certificate template you created in the previous section template in the details pane and click Properties.
After that user have TGT associated with his username across whole Active Directory AD site. In case that an username and a password are correct DC will return a Kerberos ticket on ticket or TGT to that workstation. Click the Superseded Templates tab.
Hello 0x18 normally means bad password please check. Value is not 138 when Kerberos Armoring is enabled for all Kerberos communications in the organization. What has been checked already has been listed below.
Certificate information is only provided if a certificate was used for pre-authentication. At the beginning of the day when a user sits down at his or her workstation and enters his domain username and password the workstation contacts a local DC and requests a TGT. All I get alot of these event at night and this is ouccuring for Administrator User ID and from the same server.
4771 Kerberos pre-authentication failed 4776 The domain controller attempted to validate. Password spraying can be detected based on entries in the Windows Event Log on domain controllers. This event generates every time Key Distribution Center gets a Kerberos Ticket Granting Service TGS ticket request.
If the ticket was malformed or damaged during transit and could not be decrypted then many fields in this event might not be present. The client decrypts the session key with its personal key.
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