Jeff, These are good ideas. I have not yet tried a factory reset or moving the AP to a different switch yet. The code was pre-downloaded to the AP's and on the 7.4 code it does show up as the "backup" image right now. I will try your ideas, and we are also trying a PoE injector to see if we can further isolate where the problem lies.
My guess is that these are the very first batch of 1142's that Cisco produced, but I haven't found a way to confirm this. We have already replaced about half of our 1142's ...but since we are replacing them with 3700's - the WLC of course needs to be running the 7.6MR2 or better now. I will report what we find. Thanks, Curtis ________________________________ From: The EDUCAUSE Wireless Issues Constituent Group Listserv [[email protected]] on behalf of Jeffrey Sessler [[email protected]] Sent: Thursday, July 17, 2014 11:44 AM To: [email protected] Subject: Re: [WIRELESS-LAN] Radios Shutdown After WLC Upgrade Have you reset the config to factory? Maybe something is lurking in the config file that's causing the issue. If you plug the AP into another switch does it have the same issue? Is the 7.6 code in the problem AP's corrupt i.e. did you do a pre-download to them? If you look at one of the problem AP's when it's back on a 7.4 WLC, do you see the 7.6 code still there in the secondary slot? Maybe delete it and let it add again. For the problem 1142's - are they all from the same hardware version e.g. v1? 1142's will get no further software fixes as off Oct 2014, so you may want to consider replacing them sooner rather than later. I recently updated to 7.6.120.6, and I had two 1142's that didn't come back from the update. Had to shut/no shut the port, then they rejoined. No problems with the radios being down. Jeff >>> "Curtis K. Larsen" <[email protected]> 07/16/14 3:23 PM >>> Hello, Wondering if anyone else running Cisco has run into this: After upgrading controllers from 7.4.121.0 to 7.6.120.6 about 3% (~100) of our AP's joined the WLC but both radios are shut down. If you try to re-enable the radios via the WLC or directly SSH'ed to the AP they auto-disable again. Disabling, and re-enabling the switchport does nothing, and rebooting the AP does nothing. Intentionally disabling one radio on the AP does not help either. The switch shows it is providing 15.4 watts of PoE. We are split evenly between 1142's, 3500's, and 3600's and have mostly Cisco switches, but have only seen the issue on some 1142 series AP's, and some Foundry PoE switches. In some cases another 1142 is working fine on the same switch, and if we walk over and connect another 1142 it works fine on the same port. The current work-around is to move AP's back to a WLC on 7.4 code. I have a TAC case open, and 7.6.120.6 is a special build but we were encouraged to go to it in order to avoid the catastrophic web-auth, and severe RADIUS-NAC bugs. Let me know if you have any suggestions. Thanks, Curtis Larsen University of Utah Wireless Network Engineer ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
