Error 0x80072F77

Value: -2147012745 | 0x80072F77 | 2147954551

What does it mean ?

ERROR_HTTP_DOWNLEVEL_SERVER  
The server did not return any headers.
Value: 12151 | 0x2F77 | 0b0010111101110111
WININET_E_DOWNLEVEL_SERVER  
The server does not support the requested protocol level
Value: 12151 | 0x2F77 | 0b0010111101110111

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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