Hi,
When you are using Endpoint security, Clicking the TrGui.exe will not load the VPN GUI as the VPN GUI is depended on the Endpoint security GUI.
My suggestion is to open a ticket with support.
In the meanwhile, there is another option to connect to VPN when GUI is not running - via the command line.
You can find the instructions on how to do so in the Remote Access admin guide or you can run 'trac help' from "C:\Program Files (x86)\CheckPoint\Endpoint Security\Endpoint Connect" (Via Command line).
Thanks,
Elad Shoval, Team leader, PC VPN Client, R&D, Check Point.