If you have more than one servers/PCs running at home behind the internet router, you can normally set up the router port forwarding to forward Remote Desktop traffic to just one server. However, by assigning different incoming ports for different servers, you can connect to each server individually.
Basically, use a different port for each server. Then configure the port forwarding on the router to router each port to the appropriate server on 3389. This assumes that your router supports different ranges for external and internal ports.
For example, for my home setup, I use three different port numbers for the 3 servers I have at home:
By using non-standard ports, there’s also a side benefit of a little extra security.
In Remote Desktop Client, you would add the port number to the Computer name like this:
Happy Remote Desktoping!