Windows Server 2019/VPN Access/Sonos System/Roon System

They changed the ports in the latest set of releases. If you’re trying to reach Sonos or any UPnP devices, you’ll need to make sure that they are open.

I think that the following post has the right ones now, though it’s from a thread about Linux… you can search for recent posts about changes to firewall ports to open if this isn’t right.