Error 0x80240440

Value: -2145123264 | 0x80240440 | 2149844032

What does it mean ?

WU_E_PT_ENDPOINT_DISCONNECTED   
The connection to the service endpoint died.
Value: 1088 | 0x0440 | 0b0000010001000000

Where does it come from ?

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

Other Errors for FACILITY_WINDOWSUPDATE