If you're referring to this comment in the release notes "AutoVPN tunnels may briefly drop and re-establish after configuration or WAN connectivity changes if 1) the MX is configured in high availability (HA) mode and 2) both AutoVPN peers are running MX 18" it's supposed to be fixed in 18.107.6 and 18.205. ... View more

How did you identify the overlapping network?  I am having a similar problem for any Windows PC devices that come into the building, especially if they roam throughout the school.  I only have Meraki APs - mostly MR46s.  If they are too close together, would that cause a network overlap? ... View more