I thought this was a bug when Win 8 first came out and fixed in code 7.2.111.3, sometime around October 2012.
On Thu, Aug 29, 2013 at 10:06 AM, Ball, Erik <[email protected]> wrote: > We are curious what Cisco WLAN controller code you are running (5508 > controllers?) > > > > With the number of Windows 8 systems that are coming in the door from > students, we are fairly certain that we are hitting this bug, which we have > been resolving with client drivers…. > > > > CSCua29504 - 802.11w-capable client fails pairwise key handshake with AES. > > https://tools.cisco.com/bugsearch/bug/CSCua29504/?referring_site=ss > > > > Symptom: > > An 802.11w-capable client, such as a PC running Windows 8, cannot connect > to an SSID using WPA or WPA2 key management with AES encryption. The AP > will send the M1 pairwise key message, but the PC will never respond with > M2. > > With "debug client" in effect, a message similar to the following will be > seen: > > *dot1xMsgTask: Jun 12 20:23:37.471: 00:11:22:33:44:55 Retransmit failure > for EAPOL-Key M1 to mobile 00:11:22:33:44:55, retransmit count 5, mscb > deauth count 0 > > Conditions: > > Client is 802.11w-capable, wireless infrastructure is CUWN, SSID using > WPA2/AES or WPA/AES. This bug affects CUWN 5.2.178.0 and above, but not > CUWN 4.2 or earlier, nor does it affect autonomous IOS APs. > > Workaround: > > Use WPA/TKIP or WPA2/TKIP instead. Note that this will limit the client to > 802.11g/802.11a data rates. > > Another workaround is to use a Windows 7, rather than Windows 8 driver, > for the adapter. > > > > Thanks, > Erik > > ------------------------------ > > “This message may contain confidential and/or proprietary information and > is intended for the person/entity to whom it was originally addressed. Any > use by others is strictly prohibited.” > ********** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- Vikki Cutrone Network Administrator Vassar College, Box 13 124 Raymond Ave Poughkeepsie, NY 12604-0013 845-437-7231 ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
