Error Code 0x12


Definition of Kerberos Encryption Types codes.

0x12 AES256-CTS-HMAC-SHA1-96 Supported starting from Windows Server 2008 and Windows Vista.


Error Code 0x12


Definition of TGT/TGS Issue Error Codes codes.

0x12 KDC_ERR_CLIENT_REVOKED Client’s credentials have been revoked. This might be because of an explicit disabling or because of other restrictions in place on the account. For example: account disabled, expired, or locked out.


This code may be used in the following events / insertation strings:

Insertion Strings

Ticket Encryption Type Failure Code Result Code

Security Events

Event ID 4768 Event ID 4769 Event ID 4770 Event ID 4820 Event ID 4771