What iOS version are you running? What WiFI security (WPA2/Enterprise)? We notices an issue with a couple of iPads that upgraded to iOS 11.02 using WPA2 Enterprise. I have an open ticket with Jamf
were are running about 25 ipads on ios 11.01 and the rest are on 10.3.1 and 10.3.3 they are dropping wifi and not getting any wifi selections, we are not using WPA2 Enterprise
If they are running iOS 11, make sure your tomcat certificate is SHA-256. I had a problem when devices were upgraded to iOS 11, they would stop communicating. And it was because my tomcat cert was SHA-1 and iOS 11 requires SHA-256.
