Error 0x800723A9

Value: -2147015767 | 0x800723A9 | 2147951529

What does it mean ?

DNS_ERROR_NSEC3_NAME_COLLISION  
Hash collision detected during NSEC3 signing. Specify a different user-provided salt, or use a randomly generated salt, and attempt to sign the zone again.
Value: 9129 | 0x23A9 | 0b0010001110101001

Where does it come from ?

FACILITY_WIN32  
Provides a way to handle error codes from functions in the Win32 API as an HRESULT. (Error codes in 16 - bit OLE that duplicated Win32 error codes have also been changed to FACILITY_WIN32)
Value: 7 | 0x007 | 0b00000111

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