Iphone/IOS 6 and Enterprise Wireless Networks Issue

Hi there,

Our company runs Cisco wireless using WPA2 Enterprise and AD Authentication. Now we currently have multiple vendor phones/laptops working fine including Apple Macbook Pro's, Apple Iphone 4s, Samsung Galaxy S2/S3 working on the wireless without issue.

However Ive been seeing issues with Iphone 5s and an Ipad now as well running IOS 6 where it just wont connect to the network. I am using Iphone configuration utility to install a Wireless profile with the certificate/AD credentials onto the Apple device.

I just loaded the profile on an Iphone 5 and it worked straight away.

However on ipad and other iphone 5's this is what happened, it associated to the Wireless but never got an IP address so never finishes connecting. just sits on spinning wheel.

Here is some output from the Iphone configuration utility console:

Nov 13 14:45:47 Sam-iPad eapolclient[2548] <Notice>: eapmschapv2_success_request: successfully authenticated

Nov 13 14:45:48 Sam-iPad kernel[0] <Debug>: 285568.132121 wlan.N[12106] AppleBCMWLANCore::setCIPHER_KEY(): [eapolclient]: type = CIPHER_MSK, index = 0, flags = 0x0, key lenght 64, key rsc lenght 0

Nov 13 14:45:48 Sam-iPad kernel[0] <Debug>: 285568.185043 wlan.N[12107] AppleBCMWLANCore:startRoamScan(): 3365 Delaying RoamScan; because Join Mgr Busy 0 isWaitingforIP 1

Nov 13 14:45:49 Sam-iPad kernel[0] <Debug>: IO80211AWDLMulticastPeer::queuePacket ff:ff:ff:ff:ff:ff alllocate queue for ac 0

Nov 13 14:45:58 Sam-iPad kernel[0] <Debug>: 285578.034874 wlan.N[12108] AppleBCMWLANCore:startRoamScan(): 3365 Delaying RoamScan; because Join Mgr Busy 0 isWaitingforIP 1

Nov 13 14:45:58 Sam-iPad kernel[0] <Debug>: 285578.060369 wlan.A[12109] AppleBCMWLANNetManager::handleDelayedPowerManagementTimeout(): Timed out waiting for IP address, entering powersave mode: 2

Nov 13 14:45:58 Sam-iPad kernel[0] <Debug>: 285578.075638 wlan.A[12110] AppleBCMWLANNetManager::checkRealTimeTraffic(): now 285578.075633250 num entries 4

Nov 13 14:46:06 Sam-iPad kernel[0] <Debug>: 285586.747324 wlan.N[12111] AppleBCMWLANCore:startRoamScan(): 3379 starting RoamScan; MultiAPEnv:0 isdualBand:1 isOn5G:0

Is anyone else aware of this problem?