Before downgrading the client, determine if upgrading the server side will allow the newest client to work properly. Conclusion
Select the branch (e.g., 6.2 -> 6.2.9) and click to download the executable file.
If you encounter problems while downgrading, here are a few common solutions: forticlient vpn download older versions
Windows and macOS have built-in IPsec VPN clients. If your FortiGate is configured for IKEv2 IPsec (not SSL VPN), you can connect without FortiClient entirely.
For Linux users specifically, you can modify your repository list to pin an older build, but this requires deep command-line knowledge and is not recommended for production firewalls without a backup. Before downgrading the client, determine if upgrading the
Step-by-Step Guide: How to Cleanly Downgrade FortiClient VPN
Installing a VPN client from a non-official source is like buying sushi from a gas station. You are inviting malware, backdoors, and ransomware directly into your network tunnel. Fortinet’s code is signed; random websites' code is not. If your FortiGate is configured for IKEv2 IPsec
Privacy & security notes (short)