Error 0x80420015

Value: -2143158251 | 0x80420015 | 2151809045

What does it mean ?

EAP_E_AUTHENTICATION_FAILED  
The EAPHost returns this error on authentication failure.
Value: 21 | 0x0015 | 0b0000000000010101

Where does it come from ?

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

Other Errors for FACILITY_EAP