I'm on Ubuntu and I have the same problem. I'm only using 'fortivpn' and can no longer connect because of the expiration of the licence. I tried uninstalling everything and reinstalling only the .deb package with the latest VPN-only software, from the links aboce, but I still get the same error. What should I do?
Thanks for your reply. I think this is what I did. I uninstalled everything on my machine, then installed "forticlient_vpn_7.0.0.0018_amd64.deb", downloaded from the website, but after the install I still get the message:
FortiClient SSLVPN is unavailable: FortiClient VPN trial has expired. Please contact your administrator or connect to EMS for license activation.
Perhaps there has been a step I haven't followed properly on the uninstall?