Error 0x80073621

Value: -2147011039 | 0x80073621 | 2147956257

What does it mean ?

ERROR_IPSEC_IKE_GETSPIFAIL  
Failed to obtain new SPI for the inbound SA from IPsec driver. The most common cause for this is that the driver does not have the correct filter. Check your policy to verify the filters.
Value: 13857 | 0x3621 | 0b0011011000100001

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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