Tech9
Part of the Furniture
Home security, remote access.
You may have to forward the port it uses on the ISP device or simply place your Asus WAN IP in DMZ. Other option is to connect this home security to the ISP device if this is practical and doable. This way the remote access will be limited to ISP device network only with your network behind Asus firewall. You'll still have access to it from your Asus network. Just an idea how to use double NAT as network segmentation.