Sometimes, usually in an evening, I find the signal strength on my iPad insufficient to watch a music video on YouTube with very slow buffering and often it freezes with a message "unable to access YouTube" but using the same router I can access it fully on my iPhone with very fast loading and no problems at all. Any ideas please.
are you using it in a blindspot? I dont think it matters what wifi gadget you are using if you are far away from the router or in a blindspot then it can cause havoc with anything trying to connect