Cisco air 2802I joined to WLC Radio was down

[boylogin]

some body help I have change new AP with same model in the network when joined to the WLC2504 everything look fine but the radio Oper was Down also cleanAir oper status Down

[Leo Laohoo]

Only 10 APs, so it very easy to find out.  

Go to 802.11a/n/ac Radios > Detail.  Identify which AP has the radio down. 

Go back to Monitor > All APs > Detail and look at for the same AP.   Go to the Interface tab.  Look at the bottom right-hand corner of the screen under Regulatory Domain.  What does it say?

[boylogin]

I found this any one have idea. 

Jul 9 23:35:49 kernel: [*07/09/2021 23:35:49.0000] CAPWAP State: DTLS Setup
Jul 9 23:35:50 kernel: [*07/09/2021 23:35:50.2171] CAPWAP State: Join
Jul 9 23:35:50 kernel: [*07/09/2021 23:35:50.2185] Sending Join request to 192.168.99.11 through port 5248
Jul 9 23:35:54 kernel: [*07/09/2021 23:35:54.8948] Join Response from 192.168.99.11
Jul 9 23:35:54 kernel: [*07/09/2021 23:35:54.8949] CAPWAP State: Image Data
Jul 9 23:35:54 kernel: [*07/09/2021 23:35:54.8950] CAPWAP State: Configure
Jul 9 23:35:55 kernel: [*07/09/2021 23:35:55.6775] Radio0 not started, not enough POE power
Jul 9 23:35:56 kernel: [*07/09/2021 23:35:56.5966] Radio1 not started, not enough POE power
Jul 9 23:35:57 syslog: +ifconfig wired0 promisc
Jul 9 23:35:57 kernel: [*07/09/2021 23:35:57.6525] Radio0 not started, not enough POE power
Jul 9 23:35:57 kernel: [*07/09/2021 23:35:57.6528] Radio1 not started, not enough POE power
Jul 9 23:35:57 kernel: [*07/09/2021 23:35:57.6532] Radio0 not started, not enough POE power
Jul 9 23:35:57 kernel: [*07/09/2021 23:35:57.6597] Radio1 not started, not enough POE power
Jul 9 23:35:57 kernel: [*07/09/2021 23:35:57.6649] Radio0 not started, not enough POE power
Jul 9 23:35:58 kernel: [*07/09/2021 23:35:58.3453] Radio1 not started, not enough POE power
Jul 9 23:35:59 kernel: [*07/09/2021 23:35:59.2782] CAPWAP State: Run
Jul 9 23:35:59 kernel: [*07/09/2021 23:35:59.3279] AP has joined controller WLC-2504
Jul 9 23:35:59 syslog: Password for 'admin' changed
Jul 9 23:35:59 kernel: [*07/09/2021 23:35:59.4081] Password for 'admin' changed
Jul 9 23:36:48 brain: CDP PoE negotiation FAILED !!
Jul 9 23:36:48 brain: LLDP PoE negotiation START
Jul 9 23:36:56 syslog: +ifconfig wired0 promisc
Jul 9 23:37:20 brain: LLDP PoE negotiation FAILED !!
Jul 9 23:37:20 brain: Power mode: Degraded/Reduced Power, power_detection: DC_adapter(FALSE), 802.3AF_POE(TRUE)
Jul 9 23:37:24 syslog: +ifconfig wired0 promisc
Jul 9 23:37:25 brain: Restart POE negotiation
Jul 9 23:37:30 brain: CDP PoE negotiation START
Jul 9 23:38:40 brain: CDP PoE negotiation FAILED !!
Jul 9 23:38:40 brain: LLDP PoE negotiation START
Jul 9 23:39:12 brain: LLDP PoE negotiation FAILED !!
Jul 9 23:39:12 brain: Power mode: Degraded/Reduced Power, power_detection: DC_adapter(FALSE), 802.3AF_POE(TRUE)
Jul 9 23:39:17 brain: Restart POE negotiation
Jul 9 23:39:22 brain: CDP PoE negotiation START
Jul 9 23:40:22 brain: CDP PoE negotiation FAILED !!
Jul 9 23:40:22 brain: LLDP PoE negotiation START
Jul 9 23:40:54 brain: LLDP PoE negotiation FAILED !!

[Rps-Cheers]

Yes, this is a relatively obvious phenomenon. We can see that the PoE of the AP cannot be negotiated, so Radio0 and Radio1 cannot be up, so I suggest cross-testing or use the power injector to supply power to see if the AP is working properly.

[balaji.bandi]

is the AP connecting to the switch, check on the switch is the AP getting enough power?