I went through their recommended tweaks but nothing worked until I plugged the BT Home Hub 5 back in and now it's perfect.
I wonder if, there is a hardware issue with their hub, perhaps an issue with thermal management because it did work perfectly when it was first installed. Hard to say how long that lasted as I haven't been paying that much attention. Is this a well known problem?
Edited by ritcH (Sat 07-Dec-19 16:42:23)