My adapters work fine unless I move the Wi-Fi extender (TL-WPA8631P) into a room that is further away from the extender (TL-PA8010P) that connects to the router via a LAN cable.

then the powerline led light no longer goes on with the Wi-Fi extender in the other room. The Wi-Fi lights still go on but although my devices can still connect to the tp Wi-Fi there is no internet connection in this room.
is there a limit to how far away the second extender can be. They work fine when the Wi-Fi extender is closer to the unit that is plugged in to the router, but not when I move it to where I need it the house further away. All part of the same electrical circuit.