FortiClient SSLVPN with Certificate authentication & Windows build 2004 & 2009 issue

[otterit]

Hi !

We have a compatibility issue with the last build of Windows 10 build 2004 & 2009 and FortiClient (6.0.X, 6.2.X & 6.4.X).

We have a SSLVPN connection that has a client certificate authentication on top of user/password.

With Windows 10 build 2004 & 2009, the FortiClient does not show your Personal certificate, only machine certificate.

I tried to troubleshoot this issue looking on a security issue on Windows 10 but couldn't find one.

The support isn't really helping yet. Does anyone have any idea on how to troubleshoot this issue ? The problem is not the connection to the FortiGate, it's really the FortiClient not letting you choose your Personal Certificate.