About eglinsky2012

eglinsky2012 · 07-15-2025

We have an ISE 3.2 distributed deployment (2x admin, 2x MnT, 4x PSN). We're using a multiuse certificate for Admin, EAP Authentication, RADIUS DTLS, and Portal usages. We have multiple wireless controllers that each have the four PSNs specified (9800...

eglinsky2012 · 02-13-2025

We have a 10,000-seat sports arena with 120 APs in the arena, 277 APs total in the whole building. Currently, all APs are in a single site tag and therefore on a single WNCD process. WLC is a 9800-80 on 17.12.4/APSP6 with 2,200 APs joined.During a so...

eglinsky2012 · 01-16-2025

I'm trying to copy configuration that contains encrypted passwords from one 9800 WLC to another. The key that was used when encryption was originally setup are unknown. Is there a way to view the key that was used? I read elsewhere that it's stored i...

eglinsky2012 · 01-14-2025

EoL announcement recently posted for the 9800-40 and 9800-80 WLCs specifically:https://www.cisco.com/c/en/us/products/collateral/wireless/catalyst-9800-series-wireless-controllers/catalyst-c9800-wireless-lan-controller-eol.htmlI've been wondering whe...

eglinsky2012 · 11-14-2024

Posting this here as an FYI: https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwm31864The symptom we've seen is clients unable to connect to a specific AP, so they connect to faraway APs instead, or their connection drops when they attempt to roam to ...

eglinsky2012 · 01-01-2026

What code is the WLC running? If it's 17.12 or above, the recommendation for a large deployment is to use automatic RF-based load balancing per the link @pieterh shared. That eliminates the need for site tags. I don't use that yet since I already had...

eglinsky2012 · 12-30-2025

A couple things to watch out for - if you use the password encryption service on the existing WLC, things like SSID and user account passwords cannot normally be directly copied and pasted. If you have an encryption key set on the old WLC, I believe ...

eglinsky2012 · 12-29-2025

Furthermore the 3700 is listed as supported in the 17.12 release notes: https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-12/release-notes/rn-17-12-9800.html#supported-aps

eglinsky2012 · 12-28-2025

Without ISSU, you could use the predownload procedure to get the new code staged on the AP and then perform the actual upgrade at a later time. That way, all that happens during the time window is reboots and not loading/installing software. x700 ser...

eglinsky2012 · 11-27-2025

Your data rates are very low, definitely a good idea to change those per the link Mark sent. After you make the changes, you’ll want to verify that all required devices can still connect, especially if some are very old.The screenshot, showing full s...

Member Since	‎11-07-2014 09:35 PM
Date Last Visited	‎01-01-2026 07:34 PM
Posts	439
Total Helpful Votes Received	340

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Downtime for certificate renewal - ISE 3.2

WNCD balancing for ultra high-density

View/change password encryption key

9800-40 and 9800-80 WLC end of life announcement

COS AP memory leak causing crash - CSCwm31864

Re: 9800-80-WLC AP distribution among WNCD

Re: WLC Migration 9800L to 9800M

Re: 9800-40 HA Upgrade from 17.3.7 to 17.9.7 with Ap 3700

Re: 9800-40 HA Upgrade from 17.3.7 to 17.9.7 with Ap 3700

Re: Low WiFi speed, WLC 3504 + AP AIR-AP1832I-R-K9