Forticlient VPN stopped working no macOS Monterey

Check with the Developers of this Application for an update for Specifically Monterey compatible version.

Just because it worked in Big Sur macOS 11 does not automatically mean it will work in the New Monterey macOS 12

What I had to do was restore the machine to factory and install a brand new downloaded VPN client from Fortinet's site to get mine working. The problem I had was when the user got a new MAC and I used the migration tool to migrate the users data to the new machine it would break the VPN client. When I did a fresh install it would work. Just not when we used the migration tool. Also make sure and allow the VPN client to give notifications as well as go into the security setting and give it access to the document folder.

je confirme ! la version 6.4 fonctionne alors que la 7 et la 6.0 ne fonctionnent pas (MBP 2017). merci mario

Hello, did you tried to install 6.4.6.1378 ? That's better for me but still some "freeze" sometimes…

I am having this same problem. Maybe try turn off your iCloud Private Relay first, then try connecting your VPN. Works for me sometimes.

After a long and confusing search

I have found this reddit post

https://www.reddit.com/r/fortinet/comments/qfrrh0/forticlientvpn_is_broken_on_macos_monterey_1201/

I got the same problem and installing a newest version wasn't solving the issue (as least as off the day of writing the comment). Try to install old FortiClient 6.4.6 https://filestore.fortinet.com/forticlient/downloads/FortiClient_6.4.6.1378_macosx.dmg. Should work!

Unless you're using a true VPN tunnel, such as between you and your employer, school or bank's servers, they are useless from a privacy standpoint.  Read these two articles: Public VPN's are anything but private and Former Malware Distributor Kape Technologies Now Owns ExpressVPN, CyberGhost, Private Internet Access, Zenmate, and a Collection of VPN “Review” Websites. 

Don't use a public VPN because you think you're protecting your privacy.

Hello, moi je n'ai pas ce code erreur (Error Code: -121), j'ai la version FortiClient VPN 6.2.0.614 and Monterey 12.1. Mais je perds très souvent la connexion et le serveur de fichiers disparait. Ça a pour effet de faire planter mes Apps Adobe… impossible de travailler. Je vais essayer la 6.4…

I was using the VPN with the login link in Safari, however, since I upgraded my MacOS to Monterey, it doesn't let me log in, I get a message that says Connection Closed

Also been encountering this, please share how you resolve this. Thank you

great, thanks, this worked for me!

Forticlient is the application for an SSL VPN tunnel to a fortigate firewall (which would be for an employer, school or bank server)...not a public vpn.

Its worked for me, but have Unlicensed, can u share link free version and support Monterey, Thanks.

Tks! It worked for me!