DNS_STATUS_FQDN - 9557 (0x2555)
DNS name is a fully-qualified DNS name.
Updated: Feb 21, 2026
Technical Meaning
The error code DNS_STATUS_FQDN with the numeric value of 9557 or hexadecimal representation 0x2555 is returned when a fully-qualified domain name (FQDN) was expected but not provided. This indicates that an operation requiring an FQDN failed due to missing input.
Error Details
This error typically occurs in scenarios where the system expects a complete and valid domain name, such as during DNS resolution or configuration tasks. The presence of this error suggests that either the input parameter was incomplete or incorrect, or there might be issues with the environment setup.
Usage Context
The DNS_STATUS_FQDN error can appear in various applications and APIs where FQDNs are required for proper functioning. Common contexts include:
- DNS resolution functions
- Configuration of network settings
- Domain name validation routines
- Network service initialization
Developer Interpretation
When encountering the DNS_STATUS_FQDN error, developers should ensure that all input parameters are correctly formatted and complete. Specifically, any function or API call expecting an FQDN must receive a fully-qualified domain name as input.
Related Errors
- ERROR_INVALID_NAME (123): Indicates that the specified file name is invalid.
- ERROR_PATH_NOT_FOUND (3): The system cannot find the path specified.
- ERROR_BAD_NETPATH (67): The network path was not found.
FAQ
Q: What does the DNS_STATUS_FQDN error mean?
A: It indicates that a fully-qualified domain name was expected but not provided. This typically occurs in DNS resolution or configuration tasks where an FQDN is required.
Q: How can I resolve this issue?
A: Ensure that all input parameters are correctly formatted and complete, specifically providing a fully-qualified domain name when required.
Summary
The DNS_STATUS_FQDN error code signifies the absence of a fully-qualified domain name in an operation expecting one. Developers should verify their input parameters to ensure they meet the requirements for FQDNs.