AP's disappear from controller

[crist]

I'm the tech manager here at our high school.

We have a Cisco 5508 controller with 50 Aironet AP's

Windows 2019 DHCP server

12 of my AP's are not showing up within the controller. When I look at the any of the AP's they are a solid green...even after I reboot the AP

The AP Mac is showing in the cisco switch and all 50 have reservations within DHCP

I cannot PING any of the missing 12

I'm stumped....it appears the 12 AP's are indeed connecting to the LAN, but not getting an IP from the DHCP reservation

I rebooted the DHCP server and will reboot the controller later this afternoon.

Weird though.

[Rasika Nayanajith]

With "sh cdp nei detail" output can you verify what IP AP has got ?

Do you have console access to any of those AP, if so it is easier to see what's going on

HTH

Rasika

[crist]

So I found this out.....

Most of our AP's are AIR-CAP2702I-A-K9....all of those AP's are showing up

I had 12 Aironet LAP1142 (older models) also installed

ONLY the AIR-CAP2702I-A-K9 are now showing...none of the older models are showing up.

[Rasika Nayanajith]

What version of software you run on your 5508 ? 1142 last supported on 8.3.x release.

https://www.cisco.com/c/en/us/td/docs/wireless/compatibility/matrix/compatibility-matrix.html#56735 

If software is compatible, I would check whether this cert expiry is related to your issue

https://www.cisco.com/c/en/us/support/docs/field-notices/639/fn63942.html 

HTH

Rasika

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