DNS_ERROR_DWORD_VALUE_TOO_SMALL - 9566 (0x255E)
The specified value is too small for this parameter.
Updated: Feb 21, 2026
Technical Meaning
This error code indicates that a specified value for a parameter is too small to be valid. It suggests that the input provided does not meet the minimum requirements expected by the system or application.
Error Details
The error DNS_ERROR_DWORD_VALUE_TOO_SMALL (9566, 0x255E) is returned when a value passed as a parameter in a DNS-related operation is below the acceptable threshold. This can occur in various scenarios where a specific numeric value is required and must meet certain criteria.
Usage Context
This error typically arises in situations involving DNS configuration or operations, such as setting up domain name resolution parameters. It may be encountered when attempting to configure or modify settings related to DNS servers, resource records, or other DNS-related services on a Windows system.
Developer Interpretation
When encountering this error, developers should ensure that the value being passed is within the valid range for the specific parameter in question. This might involve checking the documentation for the exact minimum acceptable values and ensuring that all input parameters are correctly set before performing the operation.
Related Errors
DNS_ERROR_DWORD_VALUE_TOO_LARGE(0x2560): Indicates a value is too large, similar to this error but in reverse.ERROR_INVALID_PARAMETER(0x57): A general error indicating an invalid parameter was passed to a function or operation.
FAQ
Q: What does DNS_ERROR_DWORD_VALUE_TOO_SMALL mean?
A: It indicates that the value provided for a specific parameter is too small, failing to meet the minimum requirements expected by the system.
Q: How can I resolve this error?
A: Verify that all parameters passed to the function or operation are within their valid ranges as specified in the documentation. Adjust the values accordingly and retry the operation.
Summary
The DNS_ERROR_DWORD_VALUE_TOO_SMALL error is a generic indication that a parameter value provided for a DNS-related operation is too small. Developers should ensure that all input parameters meet the minimum requirements to avoid this error.