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DNS_ERROR_INCONSISTENT_ROOT_HINTS
Root-hint autoconfiguration did not reach a consistent set
Windows DNS autoconfiguration can query DNS servers associated with local network adapters and derive a root-hint set from the returned root NS data. MS-DNSP specifies that autoconfiguration selects the NS records appearing in the relevant responses. If different adapter paths lead to incompatible data, the server cannot safely treat the result as one coherent bootstrap set.
Compare the DNS client configuration on every active adapter, especially on multihomed domain controllers or servers with management and production networks. The problem is not normally fixed by adding arbitrary public resolver addresses to the root-hint list. Determine why the configured upstream DNS servers disagree about the root and whether split DNS, an isolated network, or stale adapter configuration is intentional.
What to inspect
- List active adapters and the DNS servers configured on each one.
- Query the root NS RRset through each configured DNS path and compare the returned names.
- Remove stale adapter DNS configuration or correct the intended isolated-DNS design before rerunning autoconfiguration.
References
- MS-DNSP glossary: root hints, RODC, and DNS server terms
- Microsoft: DNS forwarding, conditional forwarding, and root hints
- MS-DNSP: DNS Server initialization and zone loading
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