In this post, you’ll learn about the Windows System Error ERROR_IPSEC_IKE_GETSPIFAIL (0x3621)] and the reason why you are receiving the error message
How does this Error in Windows Look like?
Error Code 13857 ERROR_IPSEC_IKE_GETSPIFAIL (0x3621)]
Why do you receive the System Error Error Code 13857 ERROR_IPSEC_IKE_GETSPIFAIL (0x3621)] in Windows?
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.