removing any special characters in the name of the vMX <-- I do have dashes in my naming convention so this might be the smoking gun. <--- When I ran into this issue the device wouldn't even complete the install process.    Meraki support has passed this off as an Azure problem <-- To a point, they are kind of right. If the DNS servers you could be using don't have access to the internet to complete the DNS requests then it should and would fail. That being said if they do have a path to the internet then I don't see why it would fail.   The good news for anyone else running into this issue is the secondary server method of 8.8.8.8 is only required while spinning up the device. Once it has been installed you can change your DNS servers in the dashboard to the DNS servers of choice then revert your Azure secondary DNS server to what you had it set to previously.      ... View more