Error 0x801881EB

Value: -2145877525 | 0x801881EB | 2149089771

What does it mean ?

DUA_E_SOAPFAULT_SERVERBUSY  
ServerBusy SOAP fault
Value: 33259 | 0x81EB | 0b1000000111101011

Where does it come from ?

FACILITY_WINDOWS_CE  
Windows CE
Value: 24 | 0x018 | 0b00011000

Other Errors for FACILITY_WINDOWS_CE