I have a customer who has a TP-Link Archer C1200 router - which does not appear to support Port Forwarding. I'm trying to set up Remote Desktop so that they can work from home. The C1200 router does support OpenVPN. I set up and was successfully able to connect from my office in IL to their office in MI via the OpenVPN client using the Certificate that their router software created. Now that I am "connected" I have tried to connect directly to the server - which has an internal IP address inside their LAN of 192.168.1.145. The VPN connection has assigned my computer inside my office as 10.8.0.6. When I use the Windows 10 Remote Desktop Connection software with the 192.168.1.145 address - I'm getting the standard "Remote Desktop Cannot Connect" for one of the following three reasons message. I am sure that I'm missing a couple of steps. Please offer any and all suggestions! Thank you in advance for your time!