RE: [WIRELESS-LAN] Cisco APs Suddenly Going Nuts- Anyone seen similar?

[Entwistle, Bruce]

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 
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)



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--
=-=-=-=-=-=-=-=-=-=-=-=
Luke Jenkins
Network Engineer
Weber State University
** Participation and subscription information for this EDUCAUSE 
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Re: [WIRELESS-LAN] Cisco APs Suddenly Going Nuts- Anyone seen similar?

[Luke Jenkins]

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  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/.