The IP address of the Video Server E is actually the IP of the computer. If you're using LAN and the IP is set to a local one, then you will have to forward the IP and the port in the Forwarding menu. The forwarding menu can be accessed from the Administration interface on your router.
Example:
IP of Video Server E: 1.1.1.1 (internal)
External IP: 100.100.100.100
Port of Video Server E: 1234
In the Forwarding interface, it needs to look like this:
Forwarding mode: TCP & UDP
IP: 1.1.1.1
Internal port: 1234
External port: 1234
After this operation, you will have the possibility to access the Video Server E at the following IP Address: 100.100.100.100:1234
