ERROR_ACCOUNT_LOCKED_OUT - 1909 (0x775)

Technical Meaning

The ERROR_ACCOUNT_LOCKED_OUT error code, represented by the numeric value 1909 or its hexadecimal equivalent 0x775, indicates that an attempt to log in using a specific account has been denied due to the account being locked out. This typically occurs when the account has exceeded a predefined number of failed login attempts within a certain time period, triggering a lockout mechanism.

Error Details

This error is commonly encountered during user authentication processes and can be triggered by various applications or services that require user credentials for access. The specific conditions under which this error is generated are typically managed by the underlying security policies configured on the system or domain level.

Usage Context

The ERROR_ACCOUNT_LOCKED_OUT error code is relevant in scenarios where a user attempts to log into a Windows-based system using an account that has been locked out. This can happen due to multiple failed login attempts, which may be part of security measures designed to prevent brute-force attacks.

Developer Interpretation

When encountering this error, developers should interpret it as indicating that the specified account is currently in a state where it cannot be used for authentication purposes until the lockout period has expired or the account has been manually unlocked. This error does not provide specific details about the cause of the lockout but indicates that the account's current status prevents successful login attempts.

Related Errors

• ERROR_ACCOUNT_RESTRICTION (1986): Indicates a restriction on the account, which may include being locked out due to policy violations.
• ERROR_LOGON_FAILURE (2059): A more general error indicating that a logon attempt failed for reasons other than an account lockout.

FAQ

Q: What does ERROR_ACCOUNT_LOCKED_OUT mean?

A: It indicates that the specified user account is currently locked out and cannot be used to log in until the lockout period has expired or the account has been manually unlocked.

Q: How can I resolve this error?

A: The account must remain locked out for a predefined period, after which it will automatically unlock. Alternatively, an administrator can manually unlock the account if necessary.

Summary

The ERROR_ACCOUNT_LOCKED_OUT (1909) error code is used to indicate that a user account has been locked out due to excessive failed login attempts. This error is part of security measures designed to prevent unauthorized access and should be handled by ensuring compliance with the system's or domain's security policies.