I am using a Cisco WLC 5508 on latest software with 1142 WAPs using HREAP mode and WPA2 with PEAP authentication with iPhones. I can connect to wifi without issue once the device is turned on, but when using Jabber for iPhone, when the screen if off, eventually the wifi goes to sleep as well and Jabber loses connection.
This was working before with iPhone 4 and iOS 4 but since upgrading to iOS 5.x I haven't been able to trust Jabber and still have to carry a 7921. Any tips on getting the wifi to stay alive?
