On Sat, 28 Jul 2018 15:32:37 +0100, Dave Plowman (News) wrote:

which is fine for most of the house. But the top floor and garden not so
good. So used the old router as an extra Wi-Fi point, fed via CAT5 on
the top floor. Seems to go a long way. ;-)

That's the way to do it. Not with Home plugs or "WiFi extenders".
Home plugs just shove out lots of interference. WiFi extenders half
the throughput straight away before taking into account neighbours on
the same channel.

--
Cheers
Dave.