0x000025F9
DNS_ERROR_DNAME_COLLISION
A DNAME record already exists for given name.
win32decimal 9721Networking
Matched as: the code as given (hex)
Log a case with no specific solution
Source: System Error Codes (9000-11999) - Win32 apps · CC-BY-4.0 (MicrosoftDocs/sdk-api, repo license verified 2026-10-09) · retrieved 2026-10-09