This reply is more of a info post for those wanting to connect a tp-link deco E4R system to a FTTN internet connection. If you are using a modem/router set it up as a bridge, and connect the deco router to this.   I wont add a lot of links on how to do this, as all modem/routers are different. There is lots of info on how to do this, just google your modem/router make and model, and how to put it in bridge mode.   Then use the app to connect the deco mesh system. ... View more