Error 0x8024043C

Value: -2145123268 | 0x8024043C | 2149844028

What does it mean ?

WU_E_PT_PROXY_AUTH_SCHEME_NOT_SUPPORTED   
The proxy auth scheme is not supported.
Value: 1084 | 0x043C | 0b0000010000111100

Where does it come from ?

FACILITY_WINDOWSUPDATE  
Windows update
Value: 36 | 0x024 | 0b00100100

Other Errors for FACILITY_WINDOWSUPDATE