Root certificate not installed

[husain]

Hi All

I face problem with one computer in my network, Internet not working in many sites and show me this message: 

A root certificate for "Fortinet" is required but isn’t installed 

I tried with google chrome, Internet explorer, and Edge .. But I face same problem in all browsers.

Any suggestion?

Thank you

[mzainuddinahm]

You may choose between flow-based & proxy-based as per your requirement. A quick glance can be done here: https://docs.fortinet.com/document/fortigate/6.2.0/cookbook/721410/about-inspection-modes