Windows error 9002 (DNS_ERROR_RCODE_SERVER

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The DNS server could not complete the requested operation.

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DNS_ERROR_RCODE_FORMAT_ERROR	DNS_ERROR_RCODE_NAME_ERROR

DNS_ERROR_RCODE_SERVER_FAILURE

DNS_ERROR_RCODE_SERVER_FAILURE represents DNS RCODE SERVFAIL. The server accepted the query but could not complete authoritative or recursive processing. The original query name is not enough to diagnose it: inspect the server-side reason, such as a failed zone load, unavailable directory service, forwarding failure, or DNSSEC validation problem.

What to check

Check DNS Server events and diagnostics at the exact query time before changing client configuration.
Test the same name on another resolver to distinguish a server-side failure from a bad authoritative or upstream path.
For external names, inspect forwarders and root-hint resolution rather than assuming the local zone is at fault.

Resolve-DnsName -Name "example.com" -Server "dns-server" -DnsOnly

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