Windows Account Lockout Error Code (netlogon, event ID, Kerberos)

Here some tables with authentication error code for quick understand what’s happen…

Netlogon Log Error Code Description
0x0 Successful login
0xC0000064 The specified user does not exist
0xC000006A The value provided as the current password is not correct
0xC000006C Password policy not met
0xC000006D The attempted logon is invalid due to a bad user name
0xC000006E User account restriction has prevented successful login
0xC000006F The user account has time restrictions and may not be logged onto at this time
0xC0000070 The user is restricted and may not log on from the source workstation
0xC0000071 The user account’s password has expired
0xC0000072 The user account is currently disabled
0xC000009A Insufficient system resources
0xC0000193 The user’s account has expired
0xC0000224 User must change his password before he logs on the first time
0xC0000234 The user account has been automatically locked
Logon Event ID Description
528 A user successfully logged on to a computer. For information about the type of logon, see the Logon Types table below.
529 Logon failure. A logon attempt was made with an unknown user name or a known user name with a bad password.
530 Logon failure. A logon attempt was made, but the user account tried to log on outside of the allowed time.
531 Logon failure. A logon attempt was made using a disabled account.
532 Logon failure. A logon attempt was made using an expired account.
533 Logon failure. A logon attempt was made by a user who is not allowed to log on at this computer.
534 Logon failure. The user attempted to log on with a type that is not allowed.
535 Logon failure. The password for the specified account has expired.
536 Logon failure. The Netlogon service is not active.
537 Logon failure. The logon attempt failed for other reasons.
Note: In some cases, the reason for the logon failure may not be known.
538 The logoff process was completed for a user.
539 Logon failure. The account was locked out at the time the logon attempt was made.
540 A user successfully logged on to a network.
541 Main mode Internet Key Exchange (IKE) authentication
was completed between the local computer and the listed peer identity (establishing a security association), or quick mode has established a
data channel.
542 A data channel was terminated.
543 Main mode was terminated.
Note: This might occur as a result of the time limit on the security association expiring, policy changes, or peer termination. (The default expiration time for security associations is eight hours.)
544 Main mode authentication failed because the peer did not provide a valid certificate or the signature was not validated.
545 Main mode authentication failed because of a Kerberos failure or a password that is not valid.
546 IKE security association establishment failed because
the peer sent a proposal that is not valid. A packet was received that contained data that is not valid.
547 A failure occurred during an IKE handshake.
548 Logon failure. The security identifier (SID) from a trusted domain does not match the account domain SID of the client.
549 Logon failure. All SIDs that correspond to untrusted namespaces were filtered out during an authentication across forests.
550 A denial-of-service attack may have taken place.
551 A user initiated the logoff process.
552 A user successfully logged on to a computer using explicit credentials while already logged on as a different user.
672 An authentication service (AS) ticket was successfully issued and validated.
673 A ticket-granting service (TGS) ticket was granted.
674 A security principal renewed an AS ticket or TGS ticket.
675 Preauthentication failed. This event is generated on a Key Distribution Center (KDC) when a user types in an incorrect password.
676 Authentication ticket request failed. This event is not generated in Windows XP or in the Windows Server 2003 family.
677 A TGS ticket was not granted. This event is not generated in Windows XP or in the Windows Server 2003 family.
678 An account was successfully mapped to a domain account.
681 Logon failure. A domain account logon was attempted. This event is not generated in Windows XP or in the Windows Server 2003 family.
682 A user has reconnected to a disconnected terminal server session.
683 A user disconnected a terminal server session without logging off.
Note: This event is generated when a user is connected to a terminal server session over the network. It appears on the terminal server.
Event ID Field Comments
Event Type, Source,Category,ID,Date,and Time self-explanatory
User The user account performing the logon. For example, this might be NT AUTHORITYSYSTEM,which is the LocalSystem account used to start many Windows 2000 services.
Computer The computer on which the event occurred
Reason Applies to logon failures only; it’s the reason the account failed to log on.
User Name The name of the user account attempting to log on
Domain The domain of the user account attempting to log on.
Logon Type A numeric value indicating the type of logon attempted. Possible values are:
2 – Interactive (interactively logged on)
3 – Network (accessed system via network)
4 – Batch (started as a batch job)
5 – Service (a Windows service started by service controller)
6 – Proxy (proxy logon; not used in Windows NT or Windows 2000)
7 – Unlock (unlock workstation)
8 – NetworkCleartext (network logon with cleartext credentials)
9 – NewCredentials (used by RunAs when the /netonly option is used)
Logon Process The process performing the logon. The following are some example logon processes:
– Advapi (triggered by a call to LogonUser; LogonUser calls LsaLogonUser, and one of the arguments to LsaLogonUser, OriginName, identifies the origin of the logon attempt)
– User32 (normal Windows 2000 logon using WinLogon)
– SCMgr (Service Control Manager started a service)
– KsecDD (network connections to the SMB server-for example, when you use a NET USE command)
– Kerberos (the Kerberos Security Support Provider [SSP])
– NtlmSsp (the NTLM SSP)
– Seclogon (Secondary Logon-that is, the RunAs command)
– IIS (IIS performed the logon; generated when logging on the IUSR_machinename account or when using Digest or Basic authentication)
Authentication Package The security package called to attempt to log on the account. An authentication package is a dynamic-link library (DLL) that analyzes logon data and determines whether to authenticate an account. Most common examples are Kerberos, Negotiate, NTLM, and MICROSOFT_AUTHENTICATION_PACKAGE_V1_0 (also called MSV1_0; authenticates users in the SAM database, supports pass-through authentication to accounts in trusted domains, and supports subauthentication packages) Workstation Name Workstation name, if known, used by the principal during logon.
Kerberos Error Number Kerberos Error Code Description
0x3 KDC_ERR_BAD_PVNO Requested protocol version number not supported.
0x6 KDC_ERR_C_PRINCIPAL_UNKNOWN Client not found in Kerberos database.
0x7 KDC_ERR_S_PRINCIPAL_UNKNOWN Server not found in Kerberos database.
0x8 KDC_ERR_PRINCIPAL_NOT_UNIQUE Multiple principal entries in database.
0xA KDC_ERR_CANNOT_POSTDATE Ticket not eligible for postdating.
0xB KDC_ERR_NEVER_VALID Requested start time is later than end time.
0xC KDC_ERR_POLICY KDC policy rejects request.
0xD KDC_ERR_BADOPTION KDC cannot accommodate requested option.
0xE KDC_ERR_ETYPE_NOSUPP KDC has no support for encryption type.
0xF KDC_ERR_SUMTYPE_NOSUPP KDC has no support for checksum type.
0x10 KDC_ERR_PADATA_TYPE_NOSUPP KDC has no support for pre-authentication data type.
0x12 KDC_ERR_CLIENT_REVOKED Client’s credentials have been revoked.
0x17 KDC_ERR_KEY_EXPIRED Password has expired – change password to reset.
0x18 KDC_ERR_PREAUTH_FAILED Pre-authentication information was invalid.
0x19 KDC_ERR_PREAUTH_REQUIRED Additional pre-authentication required.
0x1B KDC_ERR_MUST_USE_USER2USER Server principal valid for user-to-user only.
0x1C KDC_ERR_PATH_NOT_ACCPETED KDC Policy rejects transited path.
0x1D KDC_ERR_SVC_UNAVAILABLE A service is not available.
0x1F KRB_AP_ERR_BAD_INTEGRITY Integrity check on decrypted field failed.
0x20 KRB_AP_ERR_TKT_EXPIRED Ticket expired.
0x21 KRB_AP_ERR_TKT_NYV Ticket not yet valid.
0x22 KRB_AP_ERR_REPEAT Request is a replay.
0x23 KRB_AP_ERR_NOT_US The ticket isn’t for us.
0x24 KRB_AP_ERR_BADMATCH Ticket and authenticator do not match.
0x25 KRB_AP_ERR_SKEW Clock skew too great.
0x28 KRB_AP_ERR_MSG_TYPE Invalid message type.
0x29 KRB_AP_ERR_MODIFIED Message stream modified.
0x34 KRB_ERR_RESPONSE_TOO_BIG Response too big for UDP, retry with TCP.
0x3C KRB_ERR_GENERIC Generic error (description in e-text).
0x44 KDC_ERR_WRONG_REALM User-to-user TGT issued different KDC.

Source: &


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