DNS_ERROR_INCONSISTENT_ROOT_HINTS - 9565 (0x255D)

The DNS server found root hints but they were not consistent across all adapters.

Updated: Feb 21, 2026

Technical Meaning

This error code, DNS_ERROR_INCONSISTENT_ROOT_HINTS, indicates that the DNS server found root hints but discovered inconsistencies across network adapters. This inconsistency can lead to issues in resolving domain names correctly.

Error Details

The root hints are critical for DNS resolution as they provide a starting point for resolving domain names. When these hints are inconsistent, it means that different network interfaces have been configured with conflicting or outdated root server information. This can result in unpredictable behavior and potential failures in name resolution.

Usage Context

This error typically occurs during the initialization of the DNS client service on Windows systems when the system is trying to resolve domain names but encounters inconsistencies in the root hints configuration across network adapters.

Developer Interpretation

When encountering this error, developers should ensure that all network interfaces are configured with consistent and up-to-date root server information. This can be achieved by verifying the DNS settings on each adapter or by ensuring that the DNS client service is properly configured to use a reliable source of root hints.

Related Errors

  • DNS_ERROR_NO_ROOT_HINTS (0x255C): Indicates that no root hints are available for name resolution.
  • DNS_ERROR_INVALID_NAME (0x2561): Occurs when the DNS client service encounters an invalid domain name during resolution.

FAQ

Q: What does DNS_ERROR_INCONSISTENT_ROOT_HINTS mean?

A: It indicates that root hints are inconsistent across network adapters, leading to potential issues in resolving domain names.

Q: How can I resolve this issue?

A: Ensure all network interfaces have consistent and up-to-date root server information. Verify the DNS settings on each adapter or configure the DNS client service to use a reliable source of root hints.

Summary

DNS_ERROR_INCONSISTENT_ROOT_HINTS is an error code that highlights inconsistencies in root hints across network adapters, which can cause issues in domain name resolution. Developers should ensure consistent and up-to-date configuration to avoid such errors.