"41 iPads have been seen and 22 have exhibited the problem, eight to the degree of having been blocked from further access to the network" Presumably they all

"41 iPads have been seen and 22 have exhibited the problem, eight to the degree of having been blocked from further access to the network" Presumably they all have the same software, so they're not banning machines that exhibit a problem so much as those whose owners behave a certain way.