Last year i had an issue where nodes would suddenly drop out of the Azure pane and no longer show under the cluster or as a Azure Resource. And perhaps it also says not connected recently?
So let’s go trough the scenarios and how to fix them
This week we have been deploying a new environment in Azure for a client. With a secured vWAN Hub with Azure Firewall. The vWAN Hub is connected to a Cisco SD-WAN appliance that connects all of the clients physical location. We configured 2 new Domain Controllers, opened up the traffic between the Azure DC and on-premises DC. We could reach the Azure DC’s but not the other way arround.