I have always used a ping sensor to ping google.com or another reliable site. This has worked well and provides an excellent report that shows the up-time of the internet connection.
The issue is that if my main probe's internet connection goes down, it cannot alert me because the internet connection is down. I would like to receive a push notification (or whatever notification is set up) when that internet connection goes down. I'm sure this requires a second location with a separate internet connection, so I set up a remote probe via my main probe at a separate site on another internet connection. This works great, except for when it notices that my main probe is not reachable it doesn't seem to send a notification. My assumption has been that the remote probe uses the main probe to send the notification and thus can't because the internet connection is down. Only after the internet connection comes back up do I receive the notification. Is there a way to get an immediate notification of an internet outage without installing a whole new probe at another location so that all sensors can be in the same account?