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ERROR_DS_INTERNAL_FAILURE
The directory service encountered an internal failure.
ERROR_DS_INTERNAL_FAILURE is Win32 error 8430 (0x000020EE).
What to verify
Verify whether the directory service maintains consistent internal state across schema, database, security, and replication components. Check complete Directory Service event sequence, operation and target object, and server build and role.
Likely causes
- an internal component returned an unexpected result.
- database or replication state is inconsistent.
- a service defect was triggered.
- resource or storage failure was translated generically.
Troubleshooting steps
- Collect complete Directory Service event sequence.
- Record operation and target object.
Handling, retry, and recovery
Diagnose the first detailed event, validate the DC with dcdiag and replication tools, and escalate reproducible valid requests with traces.
Related errors
ERROR_DS_UNKNOWN_ERROR contains even less classification; this code at least identifies an internal directory failure
Example
A valid LDAP modification fails only on one DC. Replication diagnostics reveal that the server is isolated with stale schema data; repairing replication removes the internal failure.
References
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