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Looks like these APs are only supported on the 9800 Controllers. Confusing how they are separate from the 9120 models which are supported on the 3504 Controllers.Supported WLAN controllers● Cisco Catalyst 9800 Series Wireless Controllers
We have the same issue on 3504 Controller IOS 8.10.182.0 for C9124AXE WAPs V01 AP Running Image 17.6.2[*04/23/2023 00:24:46.8803] Discovery response from MWAR 'adwlc01' running version 8.10.182.0 is rejected.