13 Replies Latest reply: Oct 2, 2012 2:16 AM by Christian Rank
Christian Rank Level 1 Level 1 (5 points)

After upgrading from iOS 5.1.1 to iOS 6, iPhone 4S devices can no longer connect to an open wi-fi network on our campus.

We have a controller based WLAN from HP/H3C managed by a WX5004 controller with AP models WA2620-AGN and WA2620E-AGN.


Symptom: In the Wi-Fi dialog on the iPhone, out open campus network with SSID "CampusUniPassau" is displayed. After tapping this SSID, the iPhone tries to connect for a few seconds and then displays the error message 'Unable to join the network "CampusUniPassau'.


Our WLAN controller logs the following errors:

*Sep 21 08:40:46:336 2012 ac1 WMAC/7/ERROR : Invalid Extended Capabilities IE length (4).

*Sep 21 08:40:46:336 2012 ac1 WMAC/7/ERROR :  Error while processing information elements

#Sep 21 08:40:46:652 2012 ac1 WMAC/4/Station Association Fail: Station Assoc Fail:<h3cDot11StationAssocFailTrap> StaMac1:68:A8:6D:87:XX:XX StaMac2:68:A8:6D:87:XX:XX StaMac3:68:A8:6D:87:XX:XX Radioid:2 SSIDName:CampusUniPassau Cause:1 Desc:Unknown Failure APID:210235A42MB102000054


With iOS 5.1.1, all worked well, so this should be an iOS 6 bug. Are there any workarounds until Apple releases a bug fix?


Thanks in advance for any advice,


iPhone 4S, iOS 6