Wanted to report that we also started seeing APs lose their hostname (and some lose their entire minds) around the time we went to 8.2. I just got off the phone with one of our techs who physically rebooted an AP and I’m now waiting to see if it will come back. When the AP is in the “bad state”, it shows up as a CDP neighbor on the switch as APxxxx.xxxx.xxxx, I can ping it, but ssh and telnet sessions are refused.
I just looked and noticed a bunch of my APs show Backup SW version as 7.3.x, where most of them correctly show a Primary of 8.2.151.0 and a Backup of 8.2.131.40. I’m going to try the “Download Backup” to one of these APs to see if it fixes that. Thanks! -dan Dan Brisson Network Engineer University of Vermont From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Jeffrey D. Sessler Sent: Thursday, March 16, 2017 1:54 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Cisco WLC code recommendations Ken, For the AP’s that have lost their name and require a reboot. Would you check the following for me? On WLC or PI, what do the problematic WAPs report as their backup software version? Typically, it should be the same as the “backup image” under commands->config boot on the controller. If it’s instead an older version e.g. 7.1.x, let me know. It’s circumstantial at this point, but I’ve noticed a pattern. · AP’s that exhibit the problem tend to also fail AP Image Pre-download (Download Primary) during code upgrades. If you make a note of these failures, those WAPs are more likely to have mental issues. · AP’s that exhibit the problem have very old (what shipped on it) code in the backup location e.g. 7.x · Issuing a AP Image Pre-download, Download Backup to these AP’s will replace the old code in the backup location. · Once the old backup image is updated, AP pre-download (Primary) now works during code upgrades, and the AP’s seem to stop losing their minds. Jeff From: "wireless-lan@listserv.educause.edu<mailto:wireless-lan@listserv.educause.edu>" <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> on behalf of Ken LeCompte <lecom...@oit.rutgers.edu<mailto:lecom...@oit.rutgers.edu>> Reply-To: "wireless-lan@listserv.educause.edu<mailto:wireless-lan@listserv.educause.edu>" <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> Date: Monday, March 13, 2017 at 12:35 PM To: "wireless-lan@listserv.educause.edu<mailto:wireless-lan@listserv.educause.edu>" <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> Subject: Re: [WIRELESS-LAN] Cisco WLC code recommendations We are currently running a handful of 5508s with 8.0.133.0 and have been stable for some time with around 400 APs and upwards of 1.5k clients. We also run a half dozen 5520s with 8.2.141.0 and they have been running solid with around 1k APs each and upwards of 10k clients. We do not however run anything but 2600, 3600, 2700 and 3700 APs. The only issue I have seen that I don’t understand well yet is related to some APs losing the minds during network interruptions. The APs will appear up from CDP neighbor information, but will have lost their name and will not connect to their configured primary or secondary controllers. A power cycle will often recover the AP, but not always. I believe that issue started with 8.2. Thank you. Ken -- Ken LeCompte - Consulting Telecommunications Analyst Telecommunications Division Office of Information Technology Rutgers, The State University of New Jersey Office ~ (848) 445-4823 On Mar 10, 2017, at 1:52 PM, Entwistle, Bruce <bruce_entwis...@redlands.edu<mailto:bruce_entwis...@redlands.edu>> wrote: We are currently running version 8.0.133.0 on our Cisco 5508 controllers, as our current access points are primarily 3500s and 3600s. However we have recently purchased a batch of 2802i access points whose minimum supported version is 8.2.110.0. I was looking to the group for their recommendations on a stable version of code which will support our new 2802i access points. Thank you Bruce Entwistle Network Manager University of Redlands ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss.
