We haven't run into that issue..... yet. (upgraded from 7.5.102.0 to 7.6.120.0 on the 12th July)
We did have somewhat similar issue(s) with our 1142's on 7.5 though. Not seen on any other AP's and all on Cisco 3750 switches. Radios would go into operationally down even while admin up, The main difference though is an reboot or shut/no shut on the radio would fix it. We would find that over time 1 radio, then the other would fail. Sometimes this was hours apart, at other times days apart. Could be 2.4 or 5ghz first The additional issue(and biggest) we had is that the controller didn't always recognise the failure. So in some cases the controller would see the radio is down and that gets alarmed in PI. However in many cases the controller still reported the radio as up, only by getting CLI on the AP could we see the radio state as down. No real troubleshooting was done with TAC, we identified the issue but were upgrading to 7.6 in a few weeks anyway. So we held out on spending troubleshooting time until the upgrade. Just waiting to see if the problem returns, so far so good it seems. -- Jason Cook The University of Adelaide, AUSTRALIA 5005 Ph : +61 8 8313 4800 e-mail: [email protected]<mailto:[email protected]> -----Original Message----- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Curtis K. Larsen Sent: Thursday, 17 July 2014 7:53 AM To: [email protected] Subject: [WIRELESS-LAN] Radios Shutdown After WLC Upgrade 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/.
