SoftEther VPN User Forum

Hello there,
I was using SoftEther for long time and now it's filtered and blocked.
As I know it uses SSL and HTTPS protocol, it should not be possible to distinguish HTTPS connection from SoftEther connection. But DIP system do it now and while HTTPS connection works between two same server and client, SoftEther connection blocked. I used a wrapper like STunnel and connection go through it and worked.
Could you help about this situation ?

You need to study the packets from STunnel and plain SoftEther to find out where the differences are. TLS connections are most likely distinguished by SNI (client hello) and the certificate chain (server hello).
When you wrap with STunnel, did you use the same hostname and certificate? If not, that's may be the difference.