Error 0x80071781

Value: -2147018879 | 0x80071781 | 2147948417

What does it mean ?

ERROR_CS_ENCRYPTION_INVALID_SERVER_RESPONSE  
The remote server sent an invalid response for a file being opened with Client Side Encryption.
Value: 6017 | 0x1781 | 0b0001011110000001

Where does it come from ?

FACILITY_WIN32  
Provides a way to handle error codes from functions in the Win32 API as an HRESULT. (Error codes in 16 - bit OLE that duplicated Win32 error codes have also been changed to FACILITY_WIN32)
Value: 7 | 0x007 | 0b00000111

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