8.3.x? Or 8.5.x? 8.5 will support AP2600’s. We’re currently at 8.5.140.0 (we still have AP3500’s to support…) and it’s been fairly stable for AireOS.
8.3 also has some escalation fixes: https://www.cisco.com/c/en/us/support/docs/wireless/wireless-lan-controller-software/200046-tac-recommended-aireos.html#anc13 Kitri Network Architect/Engineer Enterprise Infrastructure Services Western Washington University From: The EDUCAUSE Wireless Issues Community Group Listserv <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> on behalf of Mathieu Sturm <mathieu.st...@hogent.be> Reply-To: The EDUCAUSE Wireless Issues Community Group Listserv <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Date: Tuesday, October 8, 2019 at 11:11 PM To: "WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU" <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: Re: [WIRELESS-LAN] WLC & ISE combo issues The WLC is on version 8.3.140.0 (we still have 2600 series AP’s that we need to replace so we are pretty limited) and ISE is 2.2 (patch 5). Van: The EDUCAUSE Wireless Issues Community Group Listserv <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Namens Letts, Richard J Verzonden: dinsdag 8 oktober 2019 22:41 Aan: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Onderwerp: Re: [WIRELESS-LAN] WLC & ISE combo issues What version of core on the WLC / what model of AP? We had an issue at the start of the year with version of code on cisco 3500 series AP where clients would successful authenticate with the AP, but the association would never get passed from the AP through to the controller and thence on to the ISE. Clients would get a ‘bad password’ (or similar type of error) displayed on their computer which would confuse them, and there would be nothing recorded in the WLC or ISE logs. Authentication and Association isn’t the way around people normally think of this. https://documentation.meraki.com/MR/WiFi_Basics_and_Best_Practices/802.11_Association_process_explained<https://nam03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocumentation.meraki.com%2FMR%2FWiFi_Basics_and_Best_Practices%2F802.11_Association_process_explained&data=02%7C01%7Cwatermk%40WWU.EDU%7C90f64cd5ebf74de1e21e08d74c7f87a0%7Cdc46140ce26f43efb0ae00f257f478ff%7C0%7C0%7C637061982933539827&sdata=d6N7J8%2BnK19EbRL2tx4W3%2Bnzkwbk8sBPEjBvfW4Leh8%3D&reserved=0> anyway, I think you’re going to need to include version numbers of the ISE and WLC code for more help. Thank you Richard Letts From: The EDUCAUSE Wireless Issues Community Group Listserv <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> On Behalf Of Mathieu Sturm Sent: Tuesday, October 8, 2019 2:50 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: [WIRELESS-LAN] WLC & ISE combo issues Hello, since the start of the new academic year we’ve been having some troubles with our Cisco setup. We have 3 Cisco WLC 5520’s (one of these is standby), around 850ap’s and 5 Cisco ISE’s (1 admin node, 1 monitor node and 3 radius-only nodes). We have this setup since 2018. There were some problems sometimes but nothing major. Now recently it’s taking a long time for people to get connected. We have around 20k students and 3K staff with peaks to nearly 9K associations. The problem is that it is difficult to get connected sometimes. I see the user trying to connect in the WLC’s but don’t see them trying in the ISE’s (it looks like the attempt gets lost somewher). I can see the following worrying log message in the wlc: RADIUS auth-server X.X.X.X unavailable Or These logs in the ISE 5441 Endpoint started new session while the packet of previous session is being processed. Dropping new session. 12930 Supplicant stopped responding to ISE after sending it the first PEAP message It looks like there is some sort of bottleneck between WLC and ISE. Further information: the identity store is a bunch of Windows Domain Controllers (6 in total). Any ideas? 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