Error 0x8019012C

Value: -2145844948 | 0x8019012C | 2149122348

What does it mean ?

HTTP_E_STATUS_AMBIGUOUS  
Multiple choices (300).
Value: 300 | 0x012C | 0b0000000100101100

Where does it come from ?

FACILITY_HTTP  
HTTP support
Value: 25 | 0x019 | 0b00011001

Other Errors for FACILITY_HTTP