Thanks so far.
My ipad speed tester (SpeedSmart) indicates 4.5 Mbps / 1.74 Mbps (on the wifi)
and the BTW one above is 4.41 Mbps and .98 Mbps (hard wired)
i.e. Rubbish.
However, even so, we can use the TV for Netflix most of the time (no idea why!)
Will have a think