Problem broadcast SSID (wlc 9800)

zoeiemaizz — Mon, 13 Oct 2025 09:52:49 GMT

Hi,

I have a Cisco 9105 Access Point connected to a WLC 9800. The AP successfully joins the controller, and I created four SSIDs. However, none of the SSIDs are being broadcast, they do not appear on any client devices.

I verified the RF status; both 2.4 GHz and 5 GHz radios are up. The SSIDs are enabled, and the site is configured in Flex mode. I initially suspected a power injector issue, but when I modify the VLAN under the site configuration, the SSIDs start broadcasting.

After reloading the AP, the problem reappears. I tested with two software versions 17.12 and 17.15 and the issue persists.

Re: Problem broadcast SSID (wlc 9800)

Mark Elsen — Mon, 13 Oct 2025 10:29:27 GMT

- @zoeiemaizz Check the output of the CLI command : wireless config validate
(on the 9800 controller)

Also validate the complete 9800 controller configuration with the CLI command :
show tech wireless and feed the output from that into Wireless Config Analyzer

topic Re: Problem broadcast SSID (wlc 9800) in Wireless

Problem broadcast SSID (wlc 9800)

Re: Problem broadcast SSID (wlc 9800)