Can you send me similar instructions please to change the channel on the router?
My router doesn't seem to be able to send the signal through walls that I know are just plasterboard stud walls and the bedrooms are not receiving a signal.
If you have an Android phone, I recommend you download a free app called WiFi Analyzer from the Google Play store , and try its various options with your setup.
What does the View/Signal meter show, for instance, right up by the router, and progressively further away?
Does your broadband stand head and shoulders above other neighbouring signals on View/Channel graph, or is it swamped by them?
Can you move to the best channel shown by View/Channel rating, if you are not already on it, and does that make an improvement?
WiFi Analyzer is a tool I would not be without, and it is a great shame that there can be no comparable tool on iOS devices, due to the restrictions Apple put on what apps in their AppStore can and can’t do.