Error 0x80072F77

Value: -2147012745 | 0x80072F77 | 2147954551

What does it mean ?

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

Where does it come from ?

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

Other Errors for FACILITY_WIN32