Your answer was exactly what I expected. The Ipad was a friend’s and he was using it away from home and had just been upgraded to IOS9.
It is an older Ipad with the wide connecting cable, not the latest version.
I assumed that it would have to be connected to the original computer that had Itunes on it, but had not come across this problem before.
Your answer was only helpful in as much as it confirmed what had to happen.