Homeplugs in my view are no longer the best way of getting ethernet around the house. Beware also, even the best age quite quickly as they are, after all, experiencing tough high voltage conditions (more so than in the USA). I have rarely had one survive more than 2 years (fortunately, they are often guaranteed for 3 years).

No doubt because of some bizarre poor quality mains wiring, there are circuits in my house (rewired fairly recently but before I bought it) where a pair of homeplugs can only achieve about 5mbps and not even that reliably. On the circuits that do seem to work reasonably well the speed is still very variable.

Hence I have moved to the latest generation of wifi (beam shaping 1900ac or better). Even with older (2.4GHz) ethernet bridge adapters on my MS200s etc and QNAP straight into the wifi router I am getting a completely stable system. Testing the wifi link using my PC on the same system (and not far from one MS200) I get 55-60mbps to my 75mbps broadband (Ookla speedtest). I was a bit wary (it was on my brother's recommendation!) but using the TP Link VR900 v2 (my brother's is a v1) it is another world compared with homeplugs. I am delighted.

By the way, Gianni, the BT HH is notoriously poor at handling multicast.

Cinema/Music: Trinnov Altitude32 8-16,218,Cloud 4 channel, Marantz UD5007,DSP5200SE(2+C),DSP3300(4),DSW(2),271,MShort Ceilings,AppleTV 4K
TV: Marantz SR7013 Wharfedale Diamond 9x4+Celestion(C)
Music: Roon,i7NUC8gen,QNAP TS253A, Sony Scala, MS200, Garrard DDQ650,Wharfedale Diamond 12.3
Kitchen: AD88 (bluetooth via i80).