Feature to test Killswitch
There's no way for sure to know if the killswitch will work until the connection drops. Firewall, antivirus or something else could interfere with the killswitch and my guess is that it won't work for most people. Give us reassurance by giving us a feature to test the killswitch options.
May I know the exact issue that you are experiencinga t the moment when you are trying to enable IKS and let us look into the matter?