We have been running it for just under 2 weeks. We had one major problem - clients lost connectivity to the AP for about 1/3 of their total connect time (up, down, up, down,...). After opening a TAC case and isolating a couple of groups of APs to a single controller while reverting all other WiSM2s back to 7.0.235.3 and playing for a while, it appeared that client session timeout had something to do with the problem. Lowering the value decreased the time the connection was up while raising it increased the up time. And, all clients lost and then regained connectivity at the same time on a regular interval. After doing some reading on this value, it looked like I had them all (at least most) set wrong. The Cisco docs lists a series of connection methods (e.g., WPA2+WPA) where this value should be set with all others (e.g., open, WEP, WPA-PSK) set to zero or disabled. I set a couple of SSIDs per this advice and the problem improved. It was only after I disabled this setting on all SSIDs on the controller that the problem seems to have gone away. I now have two controllers running 7.4.100.60 with client session timeout disabled and have not seen the problem for them.
We even tried an engineering release (7.4.100.xx) with no change. Even went
back to 7.3 & 7.2 with the same results. Did not try 7.1.
TAC is not convinced yet and the case remains open. They say they have never
seen this before. I will start upgrading my remaining WiSM2 controllers later
this week with all client session timeouts disabled.
I need 7.4 for recognition of our new 2602 & 3602 APs. And, we have new dense
deployment that Cisco Advanced Services is helping with that they say needs
some new stuff in the 7.4 code.
-jcw
[cid:[email protected]]
John Watters The University of Alabama
Office of Information Technology
205-348-3992
________________________________
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:[email protected]] On Behalf Of Legge, Jeffry
Sent: Tuesday, July 23, 2013 11:59 AM
To: [email protected]
Subject: [WIRELESS-LAN] WLC 7.4.100.60(Beta Version)
Is anyone running this release? Is it stable?
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