C9120AXI-E not joining WLC 5520

[ziqex]

Hi,

I have a single access point that doesn't want to join WLC. AP model: C9120AXI-E WLC Model: 5520

Option 43 is configured on the DHCP. The rest of the APs on the same vlan are joining the WLC without problems.

I've run debugs on the wlc but did not see any events for this AP MAC.

AP receives IP address and is reachable. Packet capture shows multiple dns request send by access point to pnp.server.wifi.company.corp

I've tried reloading AP multiple times but AP still doesn't join the controller. 

Any reason why this AP doesn't use the option 43 to register with the controller? 

Thanks.

[balaji.bandi]

First check the Matrix support version of WLC and AP (some new AP - hear v6 or v7 does required latest code)

Option 43 should work and tested, for tesdting, why not manually console AP and issue to join the WLC see is that register ?

#lwapp ap controller ip address <WLC IP Address>
#apwap ap controller ip address <WLC IP Address>

[ziqex]

CDP on the switch shows: Cisco AP Software, ap1g7-k9w8 Version: 17.6.4.56

Platform: cisco C9120AXI-E, Capabilities: Router Trans-Bridge

This is a remote site with limited IT resources therefore was trying to configured the new AP remotely. 

Are your cli commands correct or should it be #capwap ap controller ip address? ?

Thanks

[balaji.bandi]

That is AP version of code, what is WLC code runing on 5520 (you need ircm code)

https://www.cisco.com/c/en/us/td/docs/wireless/compatibility/matrix/compatibility-matrix.html

apologies that is typo :

#lwapp ap controller ip address <WLC IP Address>
#capwap ap controller ip address <WLC IP Address>

[ziqex]

WLC Software Version is 8.10.162.0

[balaji.bandi]

Look at the table above posted : (as i mentioned version V look carefully on AP, if the AP latest V code may not work)

Table 7. Cisco Controller Software Releases, AP IOS Releases, and Supported Access Points


if compatable - manually configure WLC IP and test and post the complete logs here

[Gaurav Kansal]

Dear Ziqex,

Please upgrade your WLC software version to latest software version if your access points manufacturing month is after September'22. You need to upgrade software to latest appropriate image if access point manufacturing is after september'22.

Please refer : https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9120axi-access-point/218081-c9105-c9120-c9130-access-points-manufact.html

Good Luck

[ziqex]

It was checked and manufacturing date is 10/2022 with Version being V07.

I assume wlc upgrade will be the only option. Thank you.

[balaji.bandi]

yes as i mentioned latest version of AP required 17.8 or 17.9 code WLC required, so look for the option mentioned in the field notice.

[ziqex]

If compatibility states that supported access point 1830 does it mean that AP AIR-AP1832I-E-K9 is supported?

[marce1000]

  - If the access point is recent , please check : https://www.cisco.com/c/en/us/support/docs/field-notices/724/fn72424.html

[ziqex]

This affected AP already runs version 17.6.4.56 and this cisco field notice shows fixed release as Upgrade Release 17.6.4 or later

[marce1000]

                        - The field notice talks in AireOS terms (controller softtware version):
    >....If a Cisco product runs Cisco AireOS 8.10.171.x or earlier, upgrade to Cisco AireOS 8.10.18x.0 or later.

  It would be advised to upgrade accordingly , if the AP is affected by the manufacturing hw version update ,

 M.

[ziqex]

I've asked person on site to check back of the AP if this is VID 07 and later

Thanks for posting. 

[Leo Laohoo · Accepted solution]

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@ziqex wrote:
I've asked person on site to check back of the AP if this is VID 07 and later

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Ask the person to look at the manufacturing date (found on the same sticker as the serial number of the AP).  If the AP is manufactured after September 2022, the WLC firmware will need to be upgraded to 8.10.18X.0 (or later).  
NOTE:  8.10.19X.X is about to come out in two weeks time.