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We are having massive issues with wireless devices from Yealink.Neither the manufacturer nor Cisco TAC could help us with connecting them stable to the WLAN. Strangely they worked ok with Aruba, but after the migration to the C9800, they cling to wea...
CoA ist set globally to Reauth in ISE. CoA is working for active wireless clients in WLC.But we see hundreds '5417 Dynamic Authorization failed' errors every 4 hours on ISE. Investigation on the WLC has shown that these clients have been disconnected...
I'm trying to upgrade a C9800-L-F controller from 17.3.3 to 17.3.4c using ISSU.The controller hardware is:cisco C9800-L-F-K9 (KATAR) processor (revision KATAR) with 1702951K/6147K bytes of memory.The software I'm using is:C9800-L-universalk9_wlc.17.0...
Per default, slot0 is 2.4ghz, slot 1 is 5ghz (FRA is disabled).I can manually set each AP to 5ghz in slot0 via:ap name <ap-name> dot11 dual-band slot 0 band 5ghzHow can I do this for a broader range of APs. Like an entire site without touching every ...
Does anybody know if/how an integrated AP860VAE inside a C866VAE-W-E-K9 router can be downgraded?I've updated my router from "c860vaew-advsecurityk9-mz.SPA.158-3.M" to "c860vaew-advsecurityk9-mz.SPA.158-3.M2" with the result, that the new image also ...
Turns out, it was the MDM server.MDM sent a massive list to ISE every 4 hours, containing MAC addresses for non-compliant endpoints.ISE then used this list and sent CoA to every WLC, without checking if this endpoint has an active session or not.
WLAN idle timeout is set to 5 minutes, the disconnected clients are also quickly removed from the clients view in monitoring on WLC and the WLC replies to ISE "No valid session", so I'm pretty sure the WLC knows that the clients aren't attached anymo...
Ok, so it seems ISSU with the Catalyst 9800-L-F simply isn't supported (at least now), because of the KATAR processor.Would have been nice if this came out during "Stage 0: System Level Sanity Checks" of the ISSU and not past that in "Stage 1:Install...
I have upgraded Rommon to '16.12(3r)', but the issue is still there.I checked beforehand, if any Rommon upgrade or other prerequisites are required, but there is nothing mentioned in the release note.The system is ISSU ready and all checks during ISS...
