We have a ESRI Enterprise 10.9.1 with Server, Portal and Datastore, all installed on same virtual server machine. We have no software modifications at all. Everything is working well exept we have one really annoying issue. Every time we automatically apply security updates for our server's operating system (Windows Server 2019 Datacenter) and the machine reboots, we lose connection to our feature layers that are in the datastore. It seems that the connection between the server and the datastore can't be established properly after the server machine reboot. This happens every time. We can fix the issue by manually rebooting ArcGIS Server -process using taskmanager. We have tried to fix the issue by creating a custom startup process with delayeds starts and by forcing Enterprise components to start up in certain order but that has not helped at all. So, what is going on? Is there a solution for this?