AP not joining and logs showing the cycle below.
This is 9120axi AP and uplinking through the "1 Gig PSE (PoE-OUT) Ethernet Port" of the 9124axd
FYI, different APs tested with the same behavior and the 9124axd AP joins the WLC normally and it is on a UPoE switch
[*07/03/2023 18:47:42.1510] ===> Activate Deep Green Mode
[*07/03/2023 18:47:42.1510] bcmswlpbk0 (Ext switch port: (Logical Port: Virtual link DOWN
[*07/03/2023 18:47:43.4520] chatter: Device wired0 notify up link DOWN
[*07/03/2023 18:47:44.2570] <=== Deactivate Deep Green Mode
[*07/03/2023 18:47:44.2570] bcmswlpbk0 (Ext switch port: (Logical Port: Virtual link UP
[*07/03/2023 18:47:44.2570] wired0 (Ext switch port: 7) (Logical Port: 15) (phyId: 1f) Link Up at 1000 mbps full duplex
[*07/03/2023 18:47:44.2580] chatter: Device wired0 notify state change link UP
[*07/03/2023 18:47:58.4820] chatter: Device wired0 notify down link UP
[*07/03/2023 18:47:58.4820] chatter: Device wired0 notify down link UP
[*07/03/2023 18:47:58.5070] wired0 (Ext switch port: 7) (Logical Port: 15) (phyId: 1f) Link DOWN.
[*07/03/2023 18:47:58.5070] ===> Activate Deep Green Mode
[*07/03/2023 18:47:58.5070] bcmswlpbk0 (Ext switch port: (Logical Port: Virtual link DOWN
[*07/03/2023 18:48:00.5020] chatter: Device wired0 notify up link DOWN
[*07/03/2023 18:48:00.6130] <=== Deactivate Deep Green Mode
[*07/03/2023 18:48:00.6130] bcmswlpbk0 (Ext switch port: (Logical Port: Virtual link UP
[*07/03/2023 18:48:00.6130] wired0 (Ext switch port: 7) (Logical Port: 15) (phyId: 1f) Link Up at 1000 mbps full duplex
[*07/03/2023 18:48:00.6130] chatter: Device wired0 notify state change link UP
[*07/03/2023 18:48:15.5350] chatter: Device wired0 notify down link UP
[*07/03/2023 18:48:15.5360] chatter: Device wired0 notify down link UP
[*07/03/2023 18:48:15.9670] wired0 (Ext switch port: 7) (Logical Port: 15) (phyId: 1f) Link DOWN.
[*07/03/2023 18:48:15.9670] ===> Activate Deep Green Mode
