Error 0x80091006

Value: -2146889722 | 0x80091006 | 2148077574

What does it mean ?

CRYPT_E_AUTH_ATTR_MISSING  
The cryptographic message does not contain an expected authenticated attribute.
Value: 4102 | 0x1006 | 0b0001000000000110

Where does it come from ?

FACILITY_SSPI  
Used for status code returned by Security Support Provider Interface (SSPI)
Value: 9 | 0x009 | 0b00001001

StackOverflow

Other Errors for FACILITY_SSPI