Thank you, We spoke to the live last week and they upgraded the AP's to a beta version that they are using but that was no help. I think we will have to go back to them tomorrow. Some of the setting at the moment just to see if you can spot any mistakes! :- Client balancing is on Auto channel Band steering is off 802.11r is disabled Support did a packet download while my Ipad was running, it paused 3 times but they could not see the issue. After reading your link I may try and put one of the Ipads back to ios 11 and see if that works. Mind you I found an old iphone 4 in a drawer yesterday, powered it up, connected to the same AP and it was fine! I must thank you for your time.
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