Hope you can help - sorry for mixing ethernet with wifi - my first attempt at a posting so please forgive an octogenarian.
We have a Virgin Super Hub with ethernet provision to TV via Virigin Tivo box using Netgear PL1000 1VGUKS - sadly no Wifi - connected via two "separate" ring main circuits. There are 3 ring main circuits in the house with a common circuit box connected to the electricity meter. Seems to have work OK for some years.
Hope to replace or reluctantly supplement the PL1000 system to provide ethernet and wifi a Wifi and some additiional Ethernet throughout the house.
So hopefully, a single unit at computer end for mains conducted transmissions and single units at the extremes (Please note ring mains situation) for wifi and ethernet, All with 13 amp through plug facilitieds. If easier would be "happy/prepared" to retain the PL1000 in position at the computer end. One retailer suggestion would be the purchase of two packs each containing one transmit unit and one reception unit making one mains transmit unit an expensive reduncancy - not happy with that.
With much thanks for help in anticipation.