FortiClient 5.6.1 crashing on MAC OS 10.12 and 10.13

Hello,

We are using SSL VPN with Fortinet 200E.

The vast majority of the users on MAC OS 10.12 and 10.13 are just working perfectly with the FortiClient.

However, few of them have the FortiClient to crash at some point. Examples :

- Takes ages to open the FortiClient on the FortiClient icon.

- After installing the FortiClient, VPN works once. If you deconnect, you can't reconnect a second time as the software is hanging on.

Please let me know can I do about it.

Armand