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Forticlient error on Mac after token authorization: "Internal error. VPN status observer is already

I'm trying to get my work VPN working on a new Mac Mini (M1, 2021) running Mac OS 12.6. When I try to connect with Forticlient free VPN software, I am asked for the token digits and can get through that, but then I get a message: "Internal error. VPN status observer is already set."

This does not happen on my 2015 MacBook Pro also running Mac OS 12.6. So it's not an operating system problem. I also did a reinstall of Mac OS on the new Mac Mini and that did not fix the problem. Also, since I can access the VPN using the MacBook Pro and my iPad, the issue is not my personal account.

Anyone else see this message and know what it could be about? I've used the Fortinet Uninstaller, but is there something else I can use to be sure every last file is deleted and do a completely clean install.

Contributor III

You can try to manually remove the following items via terminal:

cd / 
cd Library/LaunchDaemons 
sudo rm -rf com.fortinet.forticlient.* 
cd / 
cd "Library/Application Support/Fortinet" 
sudo rm -R FortiClient