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ERROR_DS_DRS_EXTENSIONS_CHANGED
The directory service binding must be renegotiated due to a change in the server extensions information.
ERROR_DS_DRS_EXTENSIONS_CHANGED is a domain-specific Windows result.
Likely impact: Continuing with stale capability assumptions can corrupt protocol sequencing or omit required fields.
Typical causes
- the DC restarted or was upgraded.
- a failover reached a different server.
- replication capability information changed.
- the client cached extensions across a rebind.
Troubleshooting steps
- Verify that client and server negotiate one consistent DRS extension set for the lifetime of the binding.
- Collect server GUID and invocation ID and old and new DRS extension blobs.
Useful evidence
- Collect DC restart or upgrade events.
- Collect client capability cache.
Recovery and retry
Discard the stale binding, renegotiate DRS extensions, and repeat only the operation whose completion is known.
Related errors
A transport RPC failure indicates connectivity; this status specifically asks the replication client to renegotiate capabilities
Example
A replication client keeps a binding across a DC restart. On this code it establishes a fresh binding and learns the new extension set before continuing.
References
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