Hello, I have detected the same problem: Operational Status DOWN (only 802.11a) but I have checked the Admin Status and the Network Status, and in both cases are Enable.
(Cisco Controller) >show 802.11a
802.11a Network.................................. Enabled
11axSupport...................................... Enabled
dynamicFrag................................ Disabled
multiBssid................................. Disabled
Target Wake Time........................... Enabled
TWT Bcast Support.......................... Enabled
BSS Color.................................. Disabled
11acSupport...................................... Enabled
11nSupport....................................... Enabled
802.11a Low Band........................... Enabled
802.11a Mid Band........................... Enabled
802.11a High Band.......................... Enabled
In my case the APs are AIR-AP1852E-C-K9 and according to the datasheet they need 20.9 which is what the switch is currently providing:
Gi1/0/2 auto on 20.9 AIR-AP1852E-C-K9 4 30.0
Gi1/0/3 auto on 20.9 AIR-AP1852E-C-K9 4 30.0
Gi1/0/4 auto on 20.9 AIR-AP1852E-C-K9 4 30.0
Gi1/0/5 auto on 20.9 AIR-AP1852E-C-K9 4 30.0
Gi1/0/6 auto on 20.9 AIR-AP1852E-C-K9 4 30.0
They are the only devices connected to this switch in need of PoE, that is, it has enough power to feed them:
Module Available Used Remaining
(Watts) (Watts) (Watts)
------ --------- -------- ---------
1 740.0 104.5 635.5
The CDP state is also set to Enable.
Could you tell me what else I can check to find out what the problem is?
Thank you very much in advance.
