Rather than alert on individual message delay, Knowledge Front’s unique alerting system is based on a period of inactivity. Every minute, the system checks the last time we heard from your server (by checking the Time Received). Based on your Alert Timeout setting, the system triggers a down alert if your Timeout period has been exceeded. As soon as we get a response (to any outstanding test message) our monitoring network recognizes that your system must be up, and will trigger an up alert. Adjusting your alert settings is a matter adjusting either your Test Frequency or your Alert Timeout - or both. If we send Test Messages more frequently, we should be receiving responses more frequently.