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DNS_ERROR_NO_TCPIP
TCP/IP network protocol not installed.
DNS_ERROR_NO_TCPIP is Win32 error 9851 (0x0000267B).
Likely impact: No DNS server setting can compensate for an unavailable IP protocol stack.
Typical causes
- TCP/IP components are not installed or are disabled.
- network stack initialization failed.
- the operation runs in a restricted recovery image.
- adapter bindings are corrupted.
Troubleshooting steps
- Verify that the system has an operational IP stack and at least one usable network interface for the requested DNS operation.
- Collect installed networking components and interface and binding state.
- Correlate System and network-service events with the DNS Server event log, DNS analytical logging when enabled, packet capture, zone metadata, server configuration, and the exact DNS API request.
Useful evidence
- Collect DNS Client service state.
- Collect a basic socket and resolver test.
Recovery and retry
Restore the Windows TCP/IP networking components and verify local socket operation before retrying DNS.
Related errors
DNS_ERROR_NO_DNS_SERVERS means TCP/IP exists but no DNS servers are configured
Example
A minimal recovery image runs a DNS management task without the networking feature. Adding the required network stack resolves the prerequisite.
References
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