Fix for FortiClient VPN app being stuck at "Connecting"

This is a fix for your FortiClient VPN being stuck at "Connecting".

I was having this issue with multiple users and final found a fix.

Cause:

FortiClient is trying to start the FortiTray.exe in your c:\program files\Fortinet\ folder, but  it is missing a .dll file (mfc140u.dll). This is part of Visual Studio.

Fix:

Download and isntall this Visual Studio Redistributable: https://aka.ms/vs/17/release/vc_redist.x64.exe

After this your FortiClient VPN app should be working as normal (might require a restart) .