Duo with Fortigate IPSec VPN problem

Hi,

I followed the procedure that explains how to setup Duo for Fortigate’s SSL VPN as i was told that it should work for IPSec VPN connections also.

Everything works as expected but the problem is that the connection still works even before i receive the push notification on my cell. And even if i decline the connection, it still works fine…

So the radius server configuration works fine in the Fortigate, but the VPN connection gets established without me having to approve it beforehand.

What am i missing ??