Error 0x80420300

Value: -2143157504 | 0x80420300 | 2151809792

What does it mean ?

EAP_E_USER_ROOT_CERT_NOT_FOUND  
The EAPHost could not find a certificate in trusted root certificate store for user certificate validation.
Value: 768 | 0x0300 | 0b0000001100000000

Where does it come from ?

FACILITY_EAP  
Extensible Authentication Protocol
Value: 66 | 0x042 | 0b01000010

Other Errors for FACILITY_EAP