Troubleshooting Tip: Getting 'Your browser or app may not be secure' message when performing SAML SSL VPN login in FortiClient

When performing SAML SSL VPN using the FortiClient internal browser, the below pop-up message may appear and stop the user from connecting:

This pop-up message may appear in the below scenario:

1. Internet Explorer application is installed.
2. In Microsoft Edge, [Internet Explorer Mode] is enabled.

To resolve this, perform one of the following:

• Uninstall the Internet Explorer application. Internet Explorer was already deprecated in 2022 and replaced by Microsoft Edge.
• Disable [Internet Explorer Mode] in Microsoft Edge:1. Open Microsoft Edge, open the Settings page.2. Go to Default browser -> Internet Explorer compatibility -> Allow sites to be reloaded in Internet Explorer mode (IE mode) -> set to Don't Allow -> Restart.

3. Relaunch Microsoft Edge and close it. The pop-up message will no longer prompt after completing one of the above solutions.