An issue could potentially occur when clicking Connect to start tunnel mode SSL VPN. The tunnel will start up for a few seconds, then shut down. Which of the following statements best describes how to

If the user did not have permission to enable tunnel mode, the VPN would likely fail to establish at all, rather than connecting for a few seconds and then disconnecting.

If the FortiGate has multiple Internet connections (e.g., WAN interfaces) and thus multiple default routes, it might send the return traffic for the SSL VPN tunnel out the wrong interface, causing the tunnel to fail after initial establishment.

While client-side SSL adaptor issues can occur, they typically prevent the tunnel from forming entirely or cause immediate connection failures, not a brief connection followed by shutdown.

Browser choice is generally irrelevant for tunnel mode SSL VPN connection stability once the FortiClient software is installed and initiating the tunnel.