Installing and configuring FortiClient on Windows
From the Fortinet downloads page, https://links.fortinet.com/forticlient/win/vpnagent , download the installer ‘FortiClientVPNOnlineInstaller.exe’. Right-click and choose ‘Run-as Administrator’ from the menu. Follow the prompts to complete the installation.
On the configuration window ensure that SSL-VPN is selected, enter suitable connection name such as 'FMRIB VPN', then enter
into the Remote Gateway field.
Click 'save'. You should now be able to connect to FMRIB via VPN.