Something we've faced over the years with the MX Firmware has been beta's or RC's causing site to site VPN outages, but reporting in the dashboard that the VPN's are alive. (i.e. the most recent 18.211 Prioritization Bug) What I would like to know is if anyone has a solution in place that can continuously ping, or access resources across Site to Site VPN's, and report if it stops working. If so, what is it, and are there options for MSP's that could be cloud centric, like a Meraki Plug in or something.