Problem: iOS 11 Compatibility with Testnav application, which is required for ISTEP.
When iOS 11 was released, Pearson asked we refrain from updating iPads to iOS 11 as it was not compatible with their app. Students were asked not to update to iOS 11 until Pearson confirmed it was okay.
Update: Pearson has announced iOS 11.1 and 11.2 are functional with Testnav. is functional with testnav. Students currently running iOS 11 should make sure they are upgraded to 11.2.2 immediately. Students running iOS 10 should stay on iOS 10 for the time being.