Hi, Les.

I'm assuming your "Ping Interval" is less than 6 minutes, right?

Have you tried closing and restarting MultiPing? (Not sure if that will make any difference, but it's easy enough that it's worth a try).

How many targets are you pinging, and what "Ping Timeout" are you using? I could imagine a case where a 10+s ping timeout and a few hundred timing out targets might cause some delay (although 6 minutes is pretty severe).

There are a few other possible clues that a better screenshot might help troubleshoot. Can you send a support ticket view Help -> Email Nessoft Support...? That will send over some additional troubleshooting information that might help a bit. Please *do* include the screenshot.