Alert is firing, but sent data looks okay
I set an alert condition for an IP. The condition is to send an alert when there are 3 incidents over 2000ms in the last 6 pings. The max e-mail frequency is 30 minutes, and the duration to wait for
Note: This answer pertains to PingPlotter V4.
Check to make sure that your 'Maximum samples to hold in memory' isn't set too low. The setup
To fix this problem, just change the 'Max samples to hold in memory' to hold at least the amount of time your maximum e-mail frequency is, preferably a bit more (as the history files that can be included in the e-mails can actually show more data than this).
To change this setting, access the Auto-Save option screen in Edit -> Options.