We've recently had 117 Meraki MX65's receive MX 18.107.2  (upgrading from MX 16.16.9), and now the USB LTE dongles plugged into their USB ports for a failover link no longer show in the dashboard on the networks. The cellular line in the network connectivity graph ends on the date these upgraded.   We've tried rebooting devices, no change. We've tried failing over to the cellular to see if it kicked in, nothing. I've tried 3 separate LTE dongles (several generations of the same "supported" device), all act as though they are dead.   The LED's on the dongles that show power and connectivity no longer light up either (but do if plugged into a computer). It's as thought MX 18.107.2 either turned off or killed the USB port.     Has anyone else seen or experienced this?  And reading other comments, it sounds like we should step right back to MX 16.16.9 for complete reliability, especially as there is RADIUS involved... Is this a fair comment?   (Yes, I have logged a case with Meraki Support. I'm curious to see if anyone else has experienced this - as MX 18.107.2 has been out for at least 6 weeks.     Thanks, Craig ... View more