Error 0x80072F85

Value: -2147012731 | 0x80072F85 | 2147954565

What does it mean ?

ERROR_INTERNET_PROXY_SERVER_UNREACHABLE  
The designated proxy server cannot be reached.
Value: 12165 | 0x2F85 | 0b0010111110000101
WININET_E_PROXY_SERVER_UNREACHABLE  
The proxy server is unreachable
Value: 12165 | 0x2F85 | 0b0010111110000101

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

StackOverflow

Other Errors for FACILITY_WIN32