IOS 5 can't connect to WPA/WPA2 Enterprise Wireless Network
After upgrading multiple iPhone 4 (CDMA versions) to IOS 5.0, I have not been able to get them to connect to our WPA/WPA2 Enterprise wirless network. We use a Cisco Wireless LAN Controller. The wireless network is capable of doing WPA or WPA2 Enterprise with PEAP. These phones all connected to this network fine before the upgrade.
When connecteding to the network, it prompts me for the username and password and when I tap join it sits for about 10-15 seconds then says "Unable to join the network" with a Dismiss button.
It connects to non-Enterprise networks just fine. I have tested it on WPA Personal and WPA2 Personal networks and it has worked on several without issue.
I have tried "forget this network" with no success.
Is anyone else having this problem? I know of at least three Verizon iPhone 4's that have this exact same problem. I haven't seen one working with this configuration yet.
iPhone 4, iOS 5