Thanks @double-link - I bought a 2nd TL-WPA8631P. I removed the TL-PA8010P from my original TL-WPA8631P KIT and now just have two TL-WPA8631P, which are paired and working fine. For anyone else doing...

I have a TL-WPA8631P KIT deployed which is 1x TL-WPA8631P Wifi + Powerline adapater in one room, connected to a powerline only (no Wifi) adapter TL-PA8010P in another room. The TL-PA8010P connects to...