I experienced a similar situation on an older version of code. Contacted Cisco and they had me move the problem APs to a second VLAN that we have for AP installation as they suspected a problem with the VLAN. After moving several APs to the second VLAN the problem was gone and never appeared again, and did not migrate with the problem APs, which still reside on that second network.
From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Luke Jenkins Sent: Wednesday, August 27, 2014 1:05 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Cisco APs Suddenly Going Nuts- Anyone seen similar? Lee, sounds like you're hitting this hardware issue: https://supportforums.cisco.com/document/105346/calibration-fix-1260-3500-series-aps-csctu24972-cscty68030 I had a few 3500s go all rebooty on me, I've been able to get them all back in line. If you can't, there is always the LLHW: http://www.cisco.com/c/en/us/products/collateral/wireless/aironet-1250-series/product_bulletin_c25-606138.html -Luke On Wed, Aug 27, 2014 at 1:37 PM, Lee H Badman <lhbad...@syr.edu<mailto:lhbad...@syr.edu>> wrote: Suddenly, Cisco 3500 APs on two controllers running 7.6.110 are letting go of the controllers frequently, and intermittently. The APs are managed on dedicated private space, on the same VLAN as the controllers. The APs ARE NOT LOSING IP ADDRESSES OR SWITCH CONNECTIVITY AND NO SWITCHES INVOLVED ARE PROBLEMATIC. It feels suddenly like the VLAN is going haywire (one VLAN among dozens on same switches that are fine), with no explanation found yet, or code funkiness. My question is coming from the code side- has anyone been through this sort of condition on Cisco AP/controllers on or near this 7.6.110 code version? APs get good DHCP, find controller, settle in, start serving clients. Randomly and frequently, AP will either jump to another controller or fall off totally and eventually reboot. Condition repeats. Just looking for ideas from code side, if it’s ringing any bells. Thanks- Lee Lee Badman Wireless/Network Architect ITS, Syracuse University 315.443.3003 (Blog: http://wirednot.wordpress.com) ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. -- =-=-=-=-=-=-=-=-=-=-=-= Luke Jenkins Network Engineer Weber State University ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
