Free forticlient not working in Linux after 1 month

[prb]

Hello All,

I am testing free Forticlient VPN only in Ubuntu-24 and Fedora 41, unfortunately it doesn't works after 1 month trial period expired. It's showing "Forticlient- Zero Trust Fabric Agent" only. However, free forticlient working fine with the Windows and MacOS even after 1 month free trial.
Note: I am using latest version of free forticlient vpn only.

https://www.fortinet.com/support/product-downloads#vpn

- For the Linux I tested Strongswan VPN (CLI) and that works fine, but not with GUI "Network manager"

[AEK]

I guess you mean IPsec VPN.

For NetworkManager there are two plugins: strongSwan and libreSwan. Didn't test them but I know they both support ike 1 & 2.

[Igneus]

No, it shouldn’t break after a month — I have it running on a Debian system for over a year without issues.

What can happen, however, is the following:

On Linux, updates to libraries such as libssl, glibc, or network-manager can break the client and cause it to stop connecting.

It could also be:
– If you have it based on certificates and the certificate expires monthly.
– Passwords with expiration policies.

Some time ago, I had a similar case. I was using MS AD for authentication, and on WS and LX devices, for some strange reason, it stopped working after a few days, and I had to reconfigure it.