I'm trying to connect to the VPN of my company using Windows 10 built-in VPN client (SSL VPN) but I'm getting the following error:

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The credentials are correct and the certificate chain is correct.

Is there a way to get more details on this error?

On my company's side, they see the following error in their logs:

Date Time: 2016-03-10 11:30:42
Date: 2016-03-10
Time: 11:30:42
Level: error error
Sub Type: sslvpn-session
ID: 39946
Virtual Domain: root
Action: ssl-exit-error
Tunnel ID: 0
Tunnel Type: ssl
Remote IP: [hidden]
Tunnel IP: N/A
User: N/A
Group: N/A
Dst Host: N/A
Reason: N/A
Message: SSL exit error

I am able to connect to the VPN of my company using FortiClient.

  • This sounds like a SSL certificate problem. Verify the certificate is installed on the client machine.
    – Ramhound
    Commented Mar 10, 2016 at 12:12
  • @Ramhound Hi, thanks for chiming in. We checked the certificate with digicert.com/help and it appears to be correctly installed. Commented Mar 10, 2016 at 12:43
  • Could it be something on my side, i.e. on my Windows machine? Commented Mar 10, 2016 at 12:43
  • That's checking if it's installed on the server, I asked, about the client machine
    – Ramhound
    Commented Mar 10, 2016 at 13:22
  • Ah sorry, I misread. How do I check that the certificate is properly installed on my machine? Commented Mar 10, 2016 at 14:43

2 Answers 2


"The Windows VPN client only supports the protocols L2TP, PPTP, IKEv2 and Microsoft's SSTP. OpenVPN is a SSL VPN"



If you are asking about the SSTP VPN function in Windows 10 built-in VPN client, it is only for SSTP VPN, which is mostly provided by Windows server.

It is not comptible with Fortinet SSL VPN.

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