FortiClient – The server you want to connect requests identification, please choose a certificate and try again

You noticed that FortiClient, VPN Server, OS, and location were all same, but some client complained they couldn’t access VPN.

This issue can be solved by enabling TLS 1.2 & 1.3 in Internet Options.

Or, You need to configure Fortigate SSL options.

To solve this, Change SSL algorithm from high to medium .

 For More Detailed Information. Always thanks for your contributions.