Have you set up a static IP address on the new PC?
Is your router set to forward 6112-6122 UDP to that specific static IP address?

Really like this program. Using at my VA with users in FSX, P3D and XP11. Working quite well. We would like to have the ability to have the session password protected. I took a look around the forums and didn't see a topic on this - but I certainly could have missed it...... Under Settings, Network ...