Remote Desktop Connection to Windows

Still Windows is my favorite OS computer even I like Mac so much. There are some thing I still have to use Windows to my work.

Recently I moved all my Windows computer to one room, where there is one Ethernet cable. In order to make them accessible to Internet, I added one router to the Ethernet cable, then three Windows PCs are connected to the router. There is no problem to connection to Internet from any one of PCs. However, my previous Remote Desktop connection from Mac to Windows does not work any more. I just cannot connect to PCs behind a router. This is the same case I cannot connect directly from outside my home to my home PC or Mac. I guess I could do that if I open some ports on the router or configure my computer IP on the router as opened one. However, that's too complicated. If I could do it once, I don't think I can remember to do it again in case some thing is wrong again.

Finally, I found a solution. Instead of using a router, I use a switch box to make three PCs in the same LAN network as Mac. As a result, I can make remote connection again to the PC from my Mac. That's very simple. The switch box has 5 ports so I have two more available in one room. By using a switch box, it makes my local networking connection much easy and expendable. I also realize that there is no firewall feature in a switch box. That's OK in my local network since I don't need firewall to block sub-areas.