I have an Android app called IP Cam Viewer v5.9.5 installed on my LG G4, which is running Lollipop. Since introducing a new RT-AC68U to my network setup at the weekend and I am no longer able to access my IP cameras FROM HOME using the app (i.e. from within the same LAN) – this was not a problem before. I can access them from outside my home network (e.g. via 4G) without any problems, so there is no problem with the selected driver for the cameras. I can also access the camera's external URL...
NAT loopback on RT-AC68U?
NAT loopback on RT-AC68U?