Hi   I have 2 sites each with 2 MX67s and 2 MS120-8LPs. we are using the switches to split the WAN links and configuring the HA for the MXs using the virtual IP option.     The issue that I am seeing is that the connectivity to the dashboard is flapping in 2hr intervals:   I have logged it with Meraki support who requested downloading the support data and do packet captures while the switch is online and offline which I did and submitted and after their investigations, the engineer said that the device could not resolve DNS. I couldnt understand why because the management of the switch as well as the traffic from the MX devices use the same VLAN and the MX's traffic is not affected at all, just the management to the switches are. i can see the MX's traffic when doing packet captures on the PE routers, but not the switch's traffic. I then called Support the following day and that engineer told me that that switch was faulty and that it needed to be RMAed. The problem is that it is happening to 1 switch at each site. Exactly the same behavior. The other switches at both sites are working fine.   Has anyone seen and/or resolved this before.  SW FW ver: 16.9  MX FW ver: tried 18.211.2/3 as well as 18.107.10   Regards Dhiren       ... View more