We upgraded our MS390 on 10/1 to 14.31 and we noticed on Monday morning we didn't have access to a Windows 2019 server. It was showing offline, since this is a VM I was able to connect to the server using the console. The first thing I saw was the ethernet icon had a yellow explantion point and I checked the settings and the server still had the correct static IP and DNS settings. I then noticed that the Windows Firewall settings showed it wasn't connected to the domain networks, and was connected to the private network. After I rebooted it worked correctly, but then a few hours later the settings had switched back and the server was offline again. We are only seeing this with our on prem Windows 2019 servers, and not with our 2012 servers. I found that the 2019 servers where showing an event id 4199 with a MAC Address associated with Meraki.
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