Error 0x8004181F

Value: -2147215329 | 0x8004181F | 2147751967

What does it mean ?

CI_E_TIMEOUT  
Service is too busy.
Value: 6175 | 0x181F | 0b0001100000011111

Where does it come from ?

FACILITY_ITF  
COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

Other Errors for FACILITY_ITF