topic Re: AP operation status down in Wireless

AP operation status down

network770 — Sun, 04 Jul 2021 07:42:31 GMT

I just setup a new lan controller and registered some AP's successfully, however the AP's are not broading the SSID's and I noticed that their operational state is down.

Why is it down and I do I bring them back up?

From the controller I can see the AP's are all enabled.

Pls help

Re: AP operation status down

Scott Fella — Sun, 25 Aug 2013 03:01:02 GMT

Post some screen shots and also from the WLC cli do a show ap summary.

Sent from Cisco Technical Support iPhone App

AP operation status down

Erwin Salazar — Sun, 25 Aug 2013 20:49:27 GMT

Hi Ronni,

There could be a number of reasons why it is currently in the DOWN state for 'Operational State':

- Is the radio for that AP(802.11a or 802.11bg) Administratively disabled? If so you will have to manually enable again through Wireless > Access Points > 802.11a or 802.11bg > Hover over small blue box far right > Configure

- Is the network disabled for that specific band? You can check the network under wireless > 802.11a/n or 802.11b/g/n > Network. Make sure the checkbox is checked for network status.

If it is not one of these two issues, then we will need more information on the controller model/software in addition to the access points model you are trying to join to give us a better understanding of the hardware involved.

Cheers,
Erwin

______________________________________

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Re: AP operation status down

network770 — Wed, 28 Aug 2013 16:44:27 GMT

(Cisco Controller) >show ap summary

Number of APs.................................... 5

Global AP User Name.............................. Not Configured
Global AP Dot1x User Name........................ Not Configured

AP Name             Slots AP Model              Ethernet MAC       Location          Port Country Priority
------------------ ----- -------------------- ----------------- ---------------- ---- ------- ------
AP_NORTHWEST         2     AIR-CAP2602E-A-K9     f8:72:ea:24:4b:89 North west corne 1        US       1
AP_SOUTHWEST         2     AIR-CAP2602E-A-K9     f8:72:ea:24:4b:9a default location 1        US       1
AP_CENTERNORTH       2     AIR-CAP2602E-A-K9     f8:72:ea:a6:c6:3e default location 1        US       1
AP_CENTERSOUTH       2     AIR-CAP2602E-A-K9     6c:41:6a:92:ab:d0 default location 1        US       1
AP_SOUTHEAST         2     AIR-CAP2602E-A-K9     f8:72:ea:23:c9:d6 default location 1        US       1

Re: AP operation status down

network770 — Wed, 28 Aug 2013 16:49:58 GMT

The admin status is enabled yet the operational status is still DOWN.

Re: AP operation status down

George Stefanick — Wed, 28 Aug 2013 16:55:15 GMT

Do a:

>show 802.11b

>show 802.11a

And post the results please

__________________________________________________________________________________________
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
__________________________________________________________________________________________
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Re: AP operation status down

network770 — Wed, 28 Aug 2013 18:24:42 GMT

That was the problem, the 802.11b Network and 802.11a Network were disabled. Thank you very much

Re: AP operation status down

Lajpat Sharma — Thu, 22 Nov 2018 12:07:37 GMT

I have same issue , please find the requested output

++++++++++++++++++

(Cisco Controller) >show 802.11b

802.11b Network.................................. Enabled
11gSupport....................................... Enabled
11nSupport....................................... Enabled
802.11b/g Operational Rates
    802.11b/g 1M Rate............................ Mandatory
    802.11b/g 2M Rate............................ Mandatory
    802.11b/g 5.5M Rate.......................... Mandatory
    802.11b/g 11M Rate........................... Mandatory
    802.11g 6M Rate.............................. Supported
    802.11g 9M Rate.............................. Supported
    802.11g 12M Rate............................. Supported
    802.11g 18M Rate............................. Supported
    802.11g 24M Rate............................. Supported
    802.11g 36M Rate............................. Supported
    802.11g 48M Rate............................. Supported
    802.11g 54M Rate............................. Supported
802.11n MCS Settings:
    MCS 0........................................ Supported
    MCS 1........................................ Supported
    MCS 2........................................ Supported
    MCS 3........................................ Supported

--More-- or (q)uit
    MCS 4........................................ Supported
    MCS 5........................................ Supported
    MCS 6........................................ Supported
    MCS 7........................................ Supported
    MCS 8........................................ Supported
    MCS 9........................................ Supported
    MCS 10....................................... Supported
    MCS 11....................................... Supported
    MCS 12....................................... Supported
    MCS 13....................................... Supported
    MCS 14....................................... Supported
    MCS 15....................................... Supported
    MCS 16....................................... Supported
    MCS 17....................................... Supported
    MCS 18....................................... Supported
    MCS 19....................................... Supported
    MCS 20....................................... Supported
    MCS 21....................................... Supported
    MCS 22....................................... Supported
    MCS 23....................................... Supported
    MCS 24....................................... Disabled
    MCS 25....................................... Disabled
    MCS 26....................................... Disabled

--More-- or (q)uit
    MCS 27....................................... Disabled
    MCS 28....................................... Disabled
    MCS 29....................................... Disabled
    MCS 30....................................... Disabled
    MCS 31....................................... Disabled
802.11n Status:
    A-MPDU Tx:
        Priority 0............................... Enabled
        Priority 1............................... Enabled
        Priority 2............................... Enabled
        Priority 3............................... Enabled
        Priority 4............................... Enabled
        Priority 5............................... Enabled
        Priority 6............................... Disabled
        Priority 7............................... Disabled
        Aggregation scheduler.................... Enabled
            Realtime Timeout..................... 10
    A-MSDU Tx:
        Priority 0............................... Enabled
        Priority 1............................... Enabled
        Priority 2............................... Enabled
        Priority 3............................... Enabled
        Priority 4............................... Enabled

--More-- or (q)uit
        Priority 5............................... Enabled
        Priority 6............................... Disabled
        Priority 7............................... Disabled
    Rifs Rx ..................................... Enabled
    Guard Interval .............................. Any
Beacon Interval.................................. 100
CF Pollable mode................................. Disabled
CF Poll Request mandatory........................ Disabled
CFP Period....................................... 4
CFP Maximum Duration............................. 60
Default Channel.................................. 1
Default Tx Power Level........................... 0
DTPC Status..................................... Enabled
RSSI Low Check................................... Disabled
RSSI Threshold................................... -80
Call Admission Limit ........................... 105
G711 CU Quantum ................................. 15
ED Threshold..................................... -50
Fragmentation Threshold.......................... 2346
PBCC mandatory................................... Disabled
RTS Threshold.................................... 2347
Short Preamble mandatory......................... Enabled
Short Retry Limit................................ 7

--More-- or (q)uit
Legacy Tx Beamforming setting.................... Disabled
Traffic Stream Metrics Status.................... Disabled
Expedited BW Request Status...................... Disabled
World Mode....................................... Enabled
Faster Carrier Tracking Loop..................... Disabled
EDCA profile type................................ default-wmm
Voice MAC optimization status.................... Disabled
Call Admission Control (CAC) configuration
   Voice AC - Admission control (ACM)............ Disabled
   Voice Stream-Size............................. 84000
   Voice Max-Streams............................. 2
   Voice max RF bandwidth........................ 75
   Voice reserved roaming bandwidth.............. 6
   Voice CAC Method.............................. Load-Based
   Voice tspec inactivity timeout................ Disabled
CAC SIP-Voice configuration
   SIP based CAC ................................ Disabled
   SIP Codec Type ............................... CODEC_TYPE_G711
   SIP call bandwidth: .......................... 64
   SIP call bandwidth sample-size ............... 20
   Video AC - Admission control (ACM)............ Disabled
   Video max RF bandwidth........................ Infinite
   Video reserved roaming bandwidth.............. 0

--More-- or (q)uit
   Video load-based CAC mode..................... Disabled
   Video CAC Method ............................. Static
CAC SIP-Video configuration
   SIP based CAC ................................ Disabled
   Best-effort AC - Admission control (ACM)...... Disabled
   Background AC - Admission control (ACM)....... Disabled
Maximum Number of Clients per AP................. 200

(Cisco Controller) >?

clear          Clear selected configuration elements.
config         Configure switch options and settings.
cping          Send capwap echo packets to a specified mobility peer IP address.
debug          Manages system debug options.
eping          Send Ethernet-over-IP echo packets to a specified mobility peer IP address.
grep           Print lines matching a pattern.
help           Help
license        Manage Software License
linktest       Perform a link test to a specified MAC address.
logout         Exit this session. Any unsaved changes are lost.
mping          Send Mobility echo packets to a specified mobility peer IP address.
ping           Send ICMP echo packets to a specified IP address.
reset          Reset options.
save           Save switch configurations.
show           Display switch options and settings.
test           Test trigger commands
transfer       Transfer a file to or from the switch.

(Cisco Controller) >show 802.11a

802.11a Network.................................. Enabled
11acSupport...................................... Enabled
11nSupport....................................... Enabled
      802.11a Low Band........................... Enabled
      802.11a Mid Band........................... Enabled
      802.11a High Band.......................... Enabled
802.11a Operational Rates
    802.11a 6M Rate.............................. Mandatory
    802.11a 9M Rate.............................. Supported
    802.11a 12M Rate............................. Mandatory
    802.11a 18M Rate............................. Supported
    802.11a 24M Rate............................. Mandatory
    802.11a 36M Rate............................. Supported
    802.11a 48M Rate............................. Supported
    802.11a 54M Rate............................. Supported
802.11n MCS Settings:
    MCS 0........................................ Supported
    MCS 1........................................ Supported
    MCS 2........................................ Supported
    MCS 3........................................ Supported
    MCS 4........................................ Supported

--More-- or (q)uit
    MCS 5........................................ Supported
    MCS 6........................................ Supported
    MCS 7........................................ Supported
    MCS 8........................................ Supported
    MCS 9........................................ Supported
    MCS 10....................................... Supported
    MCS 11....................................... Supported
    MCS 12....................................... Supported
    MCS 13....................................... Supported
    MCS 14....................................... Supported
    MCS 15....................................... Supported
    MCS 16....................................... Supported
    MCS 17....................................... Supported
    MCS 18....................................... Supported
    MCS 19....................................... Supported
    MCS 20....................................... Supported
    MCS 21....................................... Supported
    MCS 22....................................... Supported
    MCS 23....................................... Supported
    MCS 24....................................... Disabled
    MCS 25....................................... Disabled
    MCS 26....................................... Disabled
    MCS 27....................................... Disabled

--More-- or (q)uit
    MCS 28....................................... Disabled
    MCS 29....................................... Disabled
    MCS 30....................................... Disabled
    MCS 31....................................... Disabled
802.11ac MCS Settings:
    Nss=1: MCS 0-9 .............................. Supported
    Nss=2: MCS 0-9 .............................. Supported
    Nss=3: MCS 0-9 .............................. Supported
802.11n Status:
    A-MPDU Tx:
        Priority 0............................... Enabled
        Priority 1............................... Enabled
        Priority 2............................... Enabled
        Priority 3............................... Enabled
        Priority 4............................... Enabled
        Priority 5............................... Enabled
        Priority 6............................... Disabled
        Priority 7............................... Disabled
        Aggregation scheduler.................... Enabled
        Frame Burst.............................. Automatic
            Realtime Timeout..................... 10
    A-MSDU Tx:
        Priority 0............................... Enabled

--More-- or (q)uit
        Priority 1............................... Enabled
        Priority 2............................... Enabled
        Priority 3............................... Enabled
        Priority 4............................... Enabled
        Priority 5............................... Enabled
        Priority 6............................... Disabled
        Priority 7............................... Disabled
    Rifs Rx ..................................... Enabled
    Guard Interval .............................. Any
Beacon Interval.................................. 100
CF Pollable mandatory............................ Disabled
CF Poll Request mandatory........................ Disabled
CFP Period....................................... 4
CFP Maximum Duration............................. 60
Default Channel.................................. 36
Default Tx Power Level........................... 0
DTPC Status..................................... Enabled
Fragmentation Threshold.......................... 2346
RSSI Low Check................................... Disabled
RSSI Threshold................................... -80
TI Threshold..................................... -50
Legacy Tx Beamforming setting.................... Disabled
Traffic Stream Metrics Status.................... Disabled

--More-- or (q)uit
Expedited BW Request Status...................... Disabled
World Mode....................................... Enabled
dfs-peakdetect................................... Enabled
EDCA profile type................................ default-wmm
Voice MAC optimization status.................... Disabled
Call Admission Control (CAC) configuration
Voice AC:
   Voice AC - Admission control (ACM)............ Disabled
   Voice Stream-Size............................. 84000
   Voice Max-Streams............................. 2
   Voice max RF bandwidth........................ 75
   Voice reserved roaming bandwidth.............. 6
   Voice CAC Method ............................. Load-Based
   Voice tspec inactivity timeout................ Disabled
CAC SIP-Voice configuration
   SIP based CAC ................................ Disabled
   SIP Codec Type ............................... CODEC_TYPE_G711
   SIP call bandwidth ........................... 64
   SIP call bandwith sample-size ................ 20
Video AC:
   Video AC - Admission control (ACM)............ Disabled
   Video max RF bandwidth........................ Infinite
   Video reserved roaming bandwidth.............. 0

--More-- or (q)uit
   Video load-based CAC mode..................... Disabled
   Video CAC Method ............................. Static
CAC SIP-Video Configuration
   SIP based CAC ................................ Disabled
   Best-effort AC - Admission control (ACM)...... Disabled
   Background AC - Admission control (ACM)....... Disabled
Maximum Number of Clients per AP Radio........... 200

Re: AP operation status down

Tadele Mekuria — Fri, 21 Dec 2018 07:53:01 GMT

i have the same problem on this please help me.

Re: AP operation status down

Erik Kaiser — Sat, 01 Aug 2020 18:37:05 GMT

I have this same issue. However I cannot find where you enable the radios or 802.11a & b. I am using the Virtual Wireless Controller version 8.10.122. The APs are 3702E-B-K9. My only issue is their operational status is down and the radios are showing from their respective cli's as administratively down which tells me I need to perform the equivalent of a no shut on them but cannot find that setting in the WLC. I tried following your past instructions -> Wireless -> Radios -> 802.11a/n/ac/ax -> hover over blue box -> configure , problem is I dont see anything in the configuration screen to enable radios.

@Erwin Salazar wrote:

Hi Ronni,

There could be a number of reasons why it is currently in the DOWN state for 'Operational State':

- Is the radio for that AP(802.11a or 802.11bg) Administratively disabled? If so you will have to manually enable again through Wireless > Access Points > 802.11a or 802.11bg > Hover over small blue box far right > Configure

- Is the network disabled for that specific band? You can check the network under wireless > 802.11a/n or 802.11b/g/n > Network. Make sure the checkbox is checked for network status.

If it is not one of these two issues, then we will need more information on the controller model/software in addition to the access points model you are trying to join to give us a better understanding of the hardware involved.

Cheers,
Erwin

______________________________________

How helpful was I? Don't forget to rate me when you have the chance!

Re: AP operation status down

Daniel Ordóñez Flores — Sat, 01 Aug 2020 19:05:53 GMT

Hi @Erik Kaiser

I think can be a country code mistmatch, which country code are you using in your WLC, USA?

Re: AP operation status down

Erik Kaiser — Thu, 06 Aug 2020 16:17:05 GMT

I set the country code correctly. I actually solved it and it was each WAP needs to be set to flex connect. Now the new issue is trying to apply the license to this latest virtual wireless controller as the guide for my version to install the license is wrong. LOL !

Re: AP operation status down

Bobby86 — Mon, 31 Jan 2022 08:11:14 GMT

Also check you have the correct POE. My injector was only providing 15w. Moved to switch POE and the Wireless interfaces came up.

Re: AP operation status down

jdvr — Sat, 17 Sep 2022 16:54:54 GMT

I had this problem too and the cause was that my PoE switch did not provide enough power to turn the radios on. I had to use the proper injector.

Re: AP operation status down

ani123.gaekwad@gmail.com — Fri, 04 Nov 2022 03:44:20 GMT

Make sure cdp is enabled on the switchport connecting to AP for correct power allocation. If AP's do not get enough power the Radios will not be operational

After device detection, the switch will determine the power requirements based on power classification class.
Depending on the available power in the power budget, the switch determines if a port can be powered. The
switch initially allocates this power when it detects and powers the device. Power negotiation using CDP/LLDP
protocols happens thereafter

# sh power inline --- On the switch connecting to AP will give current per port power allocation

Also on the WLC you can see how much power is being taken by the AP. It should say Full Power under PoE status

Re: AP operation status down

Macarena — Wed, 22 Feb 2023 11:08:01 GMT

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.