Error 0x80240438

Value: -2145123272 | 0x80240438 | 2149844024

What does it mean ?

WU_E_PT_ENDPOINT_UNREACHABLE  
There is no route or network connectivity to the endpoint.
Value: 1080 | 0x0438 | 0b0000010000111000

Where does it come from ?

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

Other Errors for FACILITY_WINDOWSUPDATE