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SoftEther Client working but Windows SSTP not

Posted: Thu Sep 02, 2021 2:46 pm
by aaronf
I'm having a strange issue, SoftEther Client is connecting to the server I setup fine but when I try to use Windows SSTP and Mac OS X SSTP it does not work. I have entered all the correct credentials and still not working.


Any suggestions would be greatly appreciated.

Re: SoftEther Client working but Windows SSTP not

Posted: Thu Sep 02, 2021 3:35 pm
by eddiewu
Check the connection status of your softether client. Is the connection using NAT-T? It's used when direct connection is not available, which is required by other protocols.

Re: SoftEther Client working but Windows SSTP not

Posted: Sun Sep 05, 2021 10:16 am
by myron.s
I have the same problem. Server certificates are correct.
  • I have a server certificate with an CN that is the same domain as what the MS-SSTP client is connecting to.
  • MS-SSTP clone server is enabled.
  • Usernames and passwords are correct.
  • Using port 443 (the HTTPS port).
  • Firewalls have the correct holes set-up, but the built in Windows 10 SSTP client will not connect.
I have the SoftEther client connecting to the same SoftEther server over the HTTPS port and that works.

Why so I want to use MS-SSTP?

In case I need to connect to the SoftEther server when the SoftEther client is somehow blocked so I can use SE's Azure hosted proxy which does not require any firewall settings to be configured.

Re: SoftEther Client working but Windows SSTP not

Posted: Sun Sep 05, 2021 6:42 pm
by myron.s
aaronf wrote:
Thu Sep 02, 2021 2:46 pm
I'm having a strange issue, SoftEther Client is connecting to the server I setup fine but when I try to use Windows SSTP and Mac OS X SSTP it does not work. I have entered all the correct credentials and still not working.

Any suggestions would be greatly appreciated.
I found a third party app on Google Play store which had been written to be a Microsoft compatible SSTP client. Without me changing anything on the SoftEther server the Android phone connected to the SSTP clone on the SoftEther server without any problems.

So the question is what has changed on Windows to cause this problem?

The session with SoftEther is authenticated and established, but then instantly gets terminated with 0 bytes sent or received.

Re: SoftEther Client working but Windows SSTP not

Posted: Sun Sep 05, 2021 7:03 pm
by myron.s
aaronf wrote:
Thu Sep 02, 2021 2:46 pm
I'm having a strange issue, SoftEther Client is connecting to the server I setup fine but when I try to use Windows SSTP and Mac OS X SSTP it does not work. I have entered all the correct credentials and still not working.

Any suggestions would be greatly appreciated.
SUCCESS!

See https://docs.microsoft.com/en-us/troubl ... connection.

Senario 3 worked for me. Remiving all WAN Miniport drivers and then "Scan for hardware changes".

Re: SoftEther Client working but Windows SSTP not

Posted: Sun Apr 24, 2022 1:22 pm
by ciscarida
myron.s wrote:
Sun Sep 05, 2021 7:03 pm
aaronf wrote:
Thu Sep 02, 2021 2:46 pm
I'm having a strange issue, SoftEther Client is connecting to the server I setup fine but when I try to use Windows SSTP google play store apk and Mac OS X SSTP it does not work. I have entered all the correct credentials and still not working.

Any suggestions would be greatly appreciated.
SUCCESS!

See https://docs.microsoft.com/en-us/troubl ... connection.

Senario 3 worked for me. Remiving all WAN Miniport drivers and then "Scan for hardware changes".
So, only reinstall WAN Miniport (IP) interface drivers?
I have tried it but still doesn't work.

Re: SoftEther Client working but Windows SSTP not

Posted: Sun Apr 24, 2022 9:45 pm
by myron.s
Have you imported the SoftEther server certificate into the Trusted Root Certification Authorities section with the domain name you use to connect to your SoftEther VPN server included in the CN record of the certificate? I got caught out by this one for a while.