May I ask, who is your wireless vendor?
*--Jeremy L. Gibbs* Sr. Network Engineer Utica College IITS T: (315) 223-2383 F: (315) 792-3814 E: jlgi...@utica.edu http://www.utica.edu On Tue, Oct 13, 2015 at 2:32 PM, Butler, Christopher < cbut...@stjohnsprep.org> wrote: > I'm looking to collect some other information to help inform our process > to resolve an issue we are experiencing on our wireless infrastructure. I > have an open incident with my vendor and they are working on a resolution, > but I'm trying to determine if we are the only ones dealing with this. > > We have a large deployment of iPads (1500) on our campus. somewhat evenly > distributed across iPad Air 2, iPad Air, iPad 4 and iPad 3 and almost all > are running iOS 8.x. > > We had an issue crop up this fall when a group of iPads all connected to > the same access point all go to sleep at the same time. The access point > seems to lose track of which devices are asleep and which aren't and it > ends up overwhelming the RF space with RTS packets to iPads that don't > respond, thus rendering every other client on the access point almost > non-functional. > > Has anyone seen wireless transmit issues related to iOS "sleep" mode? The > packet captures indicate that the iPads seem to oscillate quickly between > "sleep" and "awake" and eventually end up asleep will the AP thinks that > they are still awake. > > Obviously, I'm in the middle of a bit of finger pointing between the > wireless vendor and Apple and other data points can only help. > > Thanks, > Christopher > > Christopher Butler > Assistant Head of School. Information Services > St. John's Preparatory School > http://www.stjohnsprep.org > > ********** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
