Error 0x8004111A

Value: -2147217126 | 0x8004111A | 2147750170

What does it mean ?

IDX_E_DSS_NOT_CONNECTED  
A connection with the Search service on a remote machine could not be established. Check the connectivity with the remote machine. If necessary, stop and restart the Search service on the remote machine.
Value: 4378 | 0x111A | 0b0001000100011010

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