The BTWifi and the EE Wifi are being transmitted from your Smarthub hence they are on the same channel as your "main" wifi. They will not be affecting the signal unless they are being used.
You can Opt out of BT/EE Wif if you wish which "may " help.
Most problems with wifi are caused by radio interference from other devices or a faulty hub. If possible try moving your hub away from other electrical devices.
If the problem has just started check if you are using any new electrical devices that coincided with the problem starting. As chack to see if it happens whethe heating starts or the fridge/freezer click on etc etc.
As regard the post about recommending that you do not change the channel. I would ignore that. Unfortunately the Smarthub only allows you to select 3 out of the 11 wifi channels available in the UK.
What you should do is get a wifi analyser app on your mobile phone then scan the wifi signals. Look for the one with the least users and select that channel. This will fix your Smarthub to always use that channel rather than jumping between channels.
