hi everyone, I told you that when i found out the answer to this problem i would let you know. if you have already tried resetting your network settings and it didnt work like mine, then go onto reset and reset all settings. this will reboot your ipad and will change your homescreen and lock screen back to normal but dont worry you will not loose your media or data or apps. when i did this it worked fine for me when i reconnected the wifi but only after i had turned off my router then back on, hope this helps people and this is thanks to the tesco technical helpline. they told me that they had had some difficulties troubleshooting this but now i am pleased to say that they have helped me, thank you and i hope this helped.