I have a headless Windows Server 2012R2 box which recently moved to a new physical network at a new site.
In setting everything back up I discovered that its hostname was not resolving and I could not RDP into the box, even by IP address. After some troubleshooting I determined that the new network had been auto-configured as a public network, and the Windows firewall defaults for public networks do not allow RDP.
I don't have any way to hook a monitor up to the server at this time. How can I enable RDP from another computer on the network? I am not using an AD domain, though I know the administrator password for the server.