You can try to use led-mode in AP view to change the state of AP indicator, which is always on or mute, which is convenient for you. Look for AP according to the indicator light.

The first thing to know is the mac address of this AP. If they are inconsistent, you can query in AC according to the mac address corresponding to the serial number, and you can check the MAC address table in the switch to find out which interface it is under. You can set up a test service template, bind it to the 5G RF port of the ap separately, and search for this signal with tools such as mobile phone wifi running-in and cloud network. The BSSID information you see is generally the same as the AP's mac.