FortiClient 6.4.9 shows VPN portal in SSO popup during connecting to SSL VPN

[pkeska]

Hello,

I have an issue with FortiClient 6.4.9 and 7.0.7 which are configured to connect to SSL VPN via SSO Azure AD.
The problem is that on Linux it sometimes (in about 50%) doesn't establish a VPN connection. Instead of this it shows VPN portal in SSO popup.
After closing the GUI and opening it once again it usually logs in correctly (sometimes not). But almost every time at first time, it shows the portal.
It looks like in below screenshot:

Does anyone know how to resolve this issue?
Thank you.

[Anthony_E]

Hello,

Thank you for using the Community Forum.

I will seek to get you an answer or help. We will reply to this thread with an update as soon as possible.

Regards,

[Anthony_E]

Hello,

We are still looking for someone to help you.

We will come back to you ASAP.

Regards,

[btan]

Hi pkeska,

Is this issue specific only on Linux machine? If yes, maybe you can raise a TAC ticket to us, as I see you are using FortiClient paid version.
If this issue is not specific on Linux machine (happens on Windows machine as well), then probably some misconfiguration on FortiGate side.
Maybe take a look in below FGT setting:
config vpn ssl settings
config vpn ssl web portal