ERROR_NOT_LOGGED_ON - 1245 (0x4DD)

Technical Meaning

The ERROR_NOT_LOGGED_ON error code, represented by the numeric value 1245 or its hexadecimal equivalent 0x4DD, indicates that an operation was attempted without a valid user session being established on the network. This typically means that the user has not logged in to the system or the network service required for the operation does not exist.

Error Details

This error is commonly encountered when attempting to access resources or services that require active user authentication, such as network shares, domain-based services, or certain administrative functions. The error message suggests that either the user has not logged on properly or the requested service is invalid or non-existent in the current context.

Usage Context

The ERROR_NOT_LOGGED_ON error can occur in various scenarios where a network operation requires an active user session. This includes but is not limited to:

• Accessing shared files or directories on a network.
• Attempting to use domain-based services such as Active Directory.
• Executing administrative tasks that require user authentication.

Developer Interpretation

Developers should interpret this error code as an indication that the operation cannot proceed due to the absence of a valid user session. This may necessitate ensuring that users are logged in before attempting network operations or verifying that the correct service is being accessed.

Related Errors

• ERROR_LOGON_FAILURE (1326) - Indicates a failed logon attempt, which could be a precursor to ERROR_NOT_LOGGED_ON if the user fails authentication.
• ERROR_SERVICE_DOES_NOT_EXIST (1060) - Suggests that the service being accessed does not exist, which may also trigger ERROR_NOT_LOGGED_ON in certain contexts.

FAQ

Q: What causes ERROR_NOT_LOGGED_ON?

A: This error typically occurs when a network operation is attempted without an active user session or when the requested service does not exist.

Q: How can I resolve this issue?

A: Ensure that you are logged in to the system and have access to the required services. If the service does not exist, verify its existence and correct any misconfigurations.

Summary

The ERROR_NOT_LOGGED_ON error code is a generic indication that an operation cannot proceed due to the absence of a valid user session or the non-existence of the requested service. Developers should handle this error by ensuring proper user authentication and verifying the existence and accessibility of required services.