The alert system in PingPlotter sees a lost packet as "over any number", so setting an alert to signal when 10 of 10 packets are > 100ms should fire when there is dropped connection too. You can also set it for 10 of 10 packets that are > 9999ms, and it will signal just when packets are lost.

If that's not working for you, please email your PingPlotter.ini, your Alerts.ini and a description of which host you're alerting on to

- Pete