Knowledge

ERROR_DS_CANT_DERIVE_SPN_WITHOUT_SERVER_REF - 8589 (0x218D)

The DS cannot derive a service principal name (SPN) with which to mutually authenticate the target server because the corresponding server object in the local DS database has no serverReference attribute.

Updated: Feb 21, 2026

Technical Background

The ERROR_DS_CANT_DERIVE_SPN_WITHOUT_SERVER_REF error (8589, 0x218D) is a specific issue encountered in the Windows operating system when attempting to derive a service principal name (SPN) for mutual authentication. This error indicates that the directory service cannot generate an SPN because the corresponding server object lacks a necessary attribute: serverReference.

Error Details

The ERROR_DS_CANT_DERIVE_SPN_WITHOUT_SERVER_REF is a specific error code related to Active Directory and Kerberos authentication mechanisms. It occurs when the system attempts to derive an SPN for mutual authentication but finds that the server object in the directory service database does not have a serverReference attribute.

Common Causes

  • Incorrect Object Type: The operation was performed on an object type other than a server, which requires a serverReference attribute.
  • Missing Attribute: The serverReference attribute is missing from the server object in the directory service database.
  • Unsupported Operation: The operation attempted to derive an SPN for a non-server object or a different context where such derivation is not supported.

Real-World Context

This error typically arises during Kerberos authentication scenarios, particularly when services need to be registered with Active Directory. For example, if a service attempts to register its SPN but the server object lacks the required serverReference attribute, this error will occur.

Is This Error Critical?

The criticality of this error depends on the context in which it occurs. If the operation is part of a critical authentication process, such as Kerberos ticket granting or service registration, then this error can be considered critical and may require immediate attention to prevent potential security vulnerabilities or service disruptions.

How to Diagnose

  1. Review Operation Context: Ensure that the operation context aligns with the expected usage for SPN derivation. Verify if the object type is a server and not another entity like a user or group.
  2. Validate Parameters: Check the parameters passed during the SPN registration process, ensuring they are correct and complete.
  3. Confirm Object Types: Confirm that the server object in Active Directory has all necessary attributes, including serverReference.
  4. Verify Input Data: Ensure that the input data for SPN derivation is accurate and consistent with expected values.
  5. Check Limits or Constraints: Verify if there are any system limits or constraints that might affect the operation of deriving an SPN.

How to Resolve

  1. Correct Parameter Usage: Ensure all parameters used in the SPN registration process are correct and complete.
  2. Adjust Operation Context: If the object type is incorrect, adjust the context to ensure it aligns with the expected usage for SPN derivation.
  3. Restore Data: If the serverReference attribute is missing or corrupted, restore the data by modifying the server object in Active Directory.
  4. Retry Operation with Valid Inputs: Once the necessary corrections are made, retry the operation to derive the SPN.

Developer Notes

When developing applications that interact with Active Directory and Kerberos authentication mechanisms, ensure that all objects used for SPN derivation have the required attributes, particularly serverReference. Additionally, validate input parameters and object types before attempting SPN registration or mutual authentication processes.

Related Errors

  • ERROR_DS_NO_ATTRIBUTE_OR_VALUE: Indicates an attribute is missing from the server object.
  • ERROR_DS_DRA_OUT_OF_MEM: Memory allocation failure during directory replication operations.
  • ERROR_DS_DRA_UPDATE_IN_PROGRESS: Update in progress on a replicated directory service database.

FAQ

Q: What does the ERROR_DS_CANT_DERIVE_SPN_WITHOUT_SERVER_REF error mean?

A: This error indicates that the system cannot derive an SPN for mutual authentication because the server object lacks a necessary attribute, serverReference, in the Active Directory directory service database.

Q: How can I prevent this error from occurring?

A: Ensure all objects used for SPN derivation have the required attributes and validate input parameters before performing SPN registration or mutual authentication operations.

Q: Is this error related to Kerberos authentication?

A: Yes, this error is commonly encountered during Kerberos authentication scenarios where an SPN needs to be derived for mutual authentication purposes.

Summary

The ERROR_DS_CANT_DERIVE_SPN_WITHOUT_SERVER_REF (8589) is a specific error in the Windows operating system that occurs when attempting to derive an SPN for mutual authentication but finding that the server object lacks a necessary attribute. This error can be diagnosed by reviewing operation context, validating parameters, and ensuring all required attributes are present. Proper resolution involves correcting parameter usage, adjusting operation context, or restoring data as needed.