Syslog messages on AP's

tiluna · ‎08-15-2023

Hi,

I am running 3800 AP's with a Cisco 9800 WLC (17.3.6) and seeing that following messages on the 3800 AP's:

*** RSN ERROR: Received a data frame when no keys are plumbed

Does anyone know what this means and if this might be affecting my clients?

marce1000 · ‎08-15-2023

Ref : https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd60034
- I think the impact on clients would be minimal , you may want to upgrade to 17.9.4 , to get rid of this problem ,

M.

-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

Rich R · ‎08-16-2023

I think Marce identified the right bug but beacon stuck could be affecting clients especially when it triggers a radio crash and restart.
17.3 is getting old and will not have any more routine bug fixes and soon no more security vulnerability fixes (end of Sep 2023) so you should be planning to upgrade to 17.9 already anyway.
https://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-xe-17/ios-xe-17-3-x-eol.html

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TAC recommended codes for AireOS WLC's and TAC recommended codes for 9800 WLC's
Best Practices for AireOS WLC's, Best Practices for 9800 WLC's and Cisco Wireless compatibility matrix
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