Thanks for this suggestion too. I had no idea that simply pressing the button did not actually stop the application. Double button push is good.
Having said that, clearing the RAM has had no improving effect on my iPad with my router. Somehow it must be the combination of the OS change with the introduction of the BBC iPlayer app that does not work well. Using a PC linked to the router, iPlayer through Safari works perfectly well.
Again, any more suggestions will be gratefully received