iPads drop internet connection while retaining connection to ssid

[Will3]

So I have had a problem with iPads losing internet randomly during the day at an Elementary school. I have 2 C35 controllers with 3825 aps running firmware version 10.31.04.0009. It seems that everyday almost a bunch of classrooms have there iPads just start spinning while loading something. The iPads are still connected to the AP with good signal, but will not ping gateway or anything until I either disconnect and reconnect from the wifi or do a hard reset on the iPad. It has been a hard problem to trouble shoot because every time it happens I hear about it afterwards or they are working by the time I get there. This problem has become frustrating to teachers and students because it will happen during the middle of testing sometimes also.

I guess I am just wondering if anyone has had similar problems and come up with any solutions. I have opened tickets in the past for this. It seems we change something and it works for a couple days so we assume it is working but then I start hearing the same thing again.

Thanks for the help.

[Laura]

It could be the application itself? We have iPads in our classrooms and, I have seen the iPad connect to the wifi and can get out to Google, but when they open downloaded applications, it will freeze. Or the kids have tons of apps open at one time.

[John_Romero]

I am having this same issue, it also happens with Apple phones. I hope someone has a fix for this as I have a bunch of not so happy college students.

[John_Romero]

10.21.03.0010

[JP4]

What firmware are you running ?