Error 0x80094018

Value: -2146877416 | 0x80094018 | 2148089880

What does it mean ?

CERTSRV_E_ENCRYPTION_CERT_REQUIRED  
No encryption certificate was specified.
Value: 16408 | 0x4018 | 0b0100000000011000

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