Follow the on-screen prompts to complete the installation setup wizard.
| Factor | Details | |--------|---------| | | Older versions often have unpatched vulnerabilities. Fortinet disclosed major flaws (e.g., CVE-2023-45590, CVE-2022-40684) affecting earlier releases. Never use unsupported versions (before 6.0) in production. | | Compatibility | FortiGate firmware and FortiClient versions are tightly coupled. For example, FortiClient 6.0.x works best with FortiOS 6.0.x; using 7.0 with FortiOS 5.6 may fail. Always check the Release Notes for interoperability. | | OS Support | Version 6.4.x was the last to support Windows 7/8 (officially). Version 7.2+ requires Windows 10/11. macOS: 7.0+ drops support for High Sierra/Mojave. | | VPN-only vs Full Suite | Older versions (pre-7.0) may install unwanted components (Web Filter, Antivirus) unless you select the VPN-only option during setup. |
Sometimes, direct links to older (VPN-only) installers can be found on the FortiClient repository. This is the best source for free, non-managed VPN clients. Recommended Older Versions for Specific Scenarios Operating System Recommended Legacy Version Windows 7/8/10 FortiClient 6.4.x or 7.0.x Stability and broad compatibility Windows 10/11 (Early) FortiClient 7.2.x Users needing newer features on older Win 10 builds macOS (Intel/Old) FortiClient 6.4 or 7.0 Older Mac hardware Linux Specific 6.x or 7.x build Distro-specific compatibility How to Securely Download and Install Step 1: Secure Your Download
: If you encounter specific errors, such as the common "10% connection hang" or "-5029" errors, rolling back can sometimes serve as a temporary fix while awaiting a patch. Critical Security Note Always verify the MD5/SHA256 checksums
Reboot your computer to completely flush remaining system drivers. Step 3: Install the Target Version forticlient vpn download older versions
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Using outdated VPN software introduces operational and security vulnerabilities into your network environment. Unpatched Security Vulnerabilities
Downgrading to a stable, long-term-support version like or 7.0.7 becomes the only fix.
On your (Firewall), an admin may need to run: Follow the on-screen prompts to complete the installation
Open the FortiClient settings immediately and to prevent the software from silently upgrading itself back to the problematic version. Security Risks of Running Legacy VPN Clients
If you have a registered support contract, follow these steps to find specific versions: : Access the Fortinet Support Portal with your credentials. Navigate to Downloads : Go to the top menu and select Support > Firmware Download Select Product FortiClient from the dropdown menu. Download Tab : Click the tab to see the version hierarchy. Choose OS and Version
: Fortinet maintains public repositories for Linux that include older versions (e.g., 6.4, 7.0, 7.2) which can be installed via terminal. Third-Party Archives : Sites like host version histories.
: Export your current VPN configurations so you do not have to re-enter server addresses, ports, and authentication methods manually. Never use unsupported versions (before 6
Installing an older version over a newer one (downgrading) often fails or corrupts system drivers. Disconnect from any active VPN sessions.
Use the Apps & Features menu to uninstall the current FortiClient. Reboot your computer completely before launching the older installer.
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Older versions might work with legacy licensing models that are no longer supported. Where to Find Official Older FortiClient Versions