Indeed. Our environment sees anywhere from 6-10k unique devices every day. Less 
than one tenth of one percent of those use TKIP. (6-10 devices total).

All of the other devices choose the most robust cipher suite available 
(CCMP-AES). And I bet we could disable TKIP entirely without any trouble. Xbox 
360's got WPA2-Personal support many years ago via firmware update, but there 
was a time that they didn't support it well.

http://forums.xbox.com/xbox_forums/xbox_support/f/9/p/298768/1566370.aspx

Also remember that TKIP-RC4 devices are forbidden by the standard from using 
MCS rates.

Sent from a grassfire using smoke signals
________________________________
From: Steve Bohrer<mailto:skboh...@simons-rock.edu>
Sent: ‎3/‎30/‎2015 10:13 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
Subject: Re: [WIRELESS-LAN] Cisco 2702 APs and MacOS security error?

We are very small, so my experiences don’t necessarily scale, but we disabled 
TKIP two years ago with no complaints. Are lots of people still running TKIP? 
Are there particular classes of equipment that require it?

Steve Bohrer
Network Admin, ITS
Bard College at Simon's Rock
413-528-7645

On Mar 27, 2015, at 12:09 PM, Joe Roth 
<jr...@binghamton.edu<mailto:jr...@binghamton.edu>> wrote:

We are in the process of upgrading some buildings to 2702 APs, and after doing 
our first building clients with Apple hardware are seeing some odd behavior. 
They are receiving the attached error. It seems to be related to TKIP. We plan 
to remove TKIP from the WPA2 SSID this summer anyway and go with AES natively, 
but in the mean time we are trying to determine a fix.


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