About CiaranB

CiaranB · 09-03-2025

Hi All,2 x WLC8540S/W: 8.10.185.0After the crash of the 4500x distribution switch to which our primary unit of the WLC8540 HA cluster was connected, the primary WLC8540 restarted but was unable to rejoin the HA cluster as the standby WLC8540. This re...

CiaranB · 07-05-2023

Hi All,We have a pair of 8540 WLC's (8.10.151.0) in HA with > 2,500 AP's registered. Approx. 2,000 of the APs are 802.11ac wave 1 APs.To accommodate some new WiFi6 APs we need to upgrade the controller to a min. version of 8.10.183.0.The upgrade is c...

CiaranB · 12-09-2022

Hi all,I'm in the process of migrating from PI v3.7 to v3.10. Because I've had a number of problems since moving from 3.3 to 3.7, I've decided to start a fresh and not try a backup and restore of the appliance to 3.10.I've imported our maps, added ou...

CiaranB · 08-13-2021

Hi, has anyone else have difficulty configuring an IMM address for the secondary WLC in a HA pair in order to carry out the CIMC upgrade? We have a pair of 8540s in HA. While running 8.5.140.0 I attempted to configure an IMM address on both WLC units...

CiaranB · 03-24-2021

Current setup: 2 x WLC8540 in HA SSO, s/w 8.5.140.0 2 x WLC 8510 in HA SSO, s/w 8.5.140.0 (test infrastructure) 2,400+ APs with a mix of 1700s, 2700s, 2800s, 1815s Software maintenance support for version 8.5 release ends on December 30, 2021. We ...

CiaranB · 10-14-2025

Hi there, As per the bug workaround, disabling RP encryption resolved the problem.thanksCiarán

CiaranB · 09-04-2025

Primary Redundancy InformationRedundancy Mode.................................. SSO ENABLEDLocal State...................................... ACTIVEPeer State....................................... UNKNOWN - Communication DownUnit........................

CiaranB · 11-29-2024

Licence is required to integrate Catalyst Center with FMC?

CiaranB · 07-06-2023

Thanks for the detailed reply Leo.I spoke with a rep from Cisco, this issue was actually resolved in 8.10.185.0 code, which is now published on CCO.https://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/crn810mr9.html#resolved-caveat...

CiaranB · 07-05-2023

Hi, thanks for getting back to me. Why use this method instead of the recommended workaround from Cisco?thanksCiarán

Member Since	‎05-11-2010 04:39 AM
Date Last Visited	‎10-14-2025 08:48 AM
Posts	33
Total Helpful Votes Received	11

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CSCwa57853 - HA loses the connection when link encryption is enabled

Large deployment upgrade with CSCwd80290

Migration from PI 3.7 to PI 3.10

WLC 8540 CIMC upgrade

Replacement test controller

Re: CSCwa57853 - HA loses the connection when link encryption is enabl

Re: CSCwa57853 - HA loses the connection when link encryption is enabl

Re: FMC Integration

Re: Large deployment upgrade with CSCwd80290

Re: Large deployment upgrade with CSCwd80290