The only other changes you can make in the hub is mode which is set at 1 but can change to 2 or 3
Are you using a different BT hub now to that you previous used? If a different hub did you have the 2.4/5ghz networks split with different SSID?
It is the same hub. Smart Hub 2 she swapped it back to the old one as it made no difference.
I'll try the different modes. Thankyou for your help.