AP C9124AXI NOT JOINING CONTROLLER

[H&M]

Hello all,

I´m having issues trying to join a cisco C9124axi to cisco mobility express, I got the following output from cli:

AP488B.0A76.715C#[*01/22/2022 02:31:44.5321]
[*01/22/2022 02:31:44.5321] CAPWAP State: Discovery
[*01/22/2022 02:31:44.5352] Discovery Request sent to 255.255.255.255, discovery type UNKNOWN(0)
[*01/22/2022 02:31:44.5363] Discovery Response from 10.4.209.222
[*01/22/2022 02:31:44.5364] Discovery response from MWAR 'ORZ-WC-OT01' running version 8.10.151.0 is rejected.
[*01/22/2022 02:31:44.5364] Failed to decode discovery response(status = 4).
[*01/22/2022 02:31:44.5364] CAPWAP SM handler: Failed to process message type 2 state 2.
[*01/22/2022 02:31:44.5364] Failed to handle capwap control message from controller - status 4
[*01/22/2022 02:31:44.5364] Failed to process unencrypted capwap packet 0x55b99da000 from 10.4.209.222
[*01/22/2022 02:31:44.5364] Failed to send capwap message 0 to the state machine. Packet already freed.

Show version output

Cisco AP Software, (ap1g6a), C9124, RELEASE SOFTWARE
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2022 by Cisco Systems, Inc.
Compiled Fri Jul 30 02:53:42 PDT 2021

ROM: Bootstrap program is U-Boot boot loader
BOOTLDR: U-Boot boot loader Version 17

AP488B.0A76.715C uptime is 0 days, 0 hours, 2 minutes
Last reload time : Sat Jan 22 02:40:10 UTC 2022
Last reload reason : Failed to discover WLC after maximum attempt

cisco C9124AXI-A ARMv8 Processor rev 4 (v8l) with 1812508/1258868K bytes of memory.
Processor board ID FJC26042AEZ
AP Running Image : 17.6.1.13
Primary Boot Image : 17.6.1.13
Backup Boot Image : 0.0.0.0
Primary Boot Image Hash:
Backup Boot Image Hash:
3 Multigigabit Ethernet interfaces
2 802.11 Radios
1 Bluetooth Low Energy Integrated Radio
BLE Firmware Version : 2.7.19
Radio FW version : QC_IMAGE_VERSION_STRING=WLAN.HK.2.4-02036-QCAHKSWPL_SILICONZ-1
NSS FW version : NSS.HK.11.3-9-SF05156147-E_custC

Base ethernet MAC Address : 48:8B:0A:76:71:5C
Part Number : 0-0000-00
PCA Assembly Number : 074-125082-01
PCA Revision Number : A0
PCB Serial Number : FOC2551260T
Top Assembly Part Number : 068-102439-01
Top Assembly Serial Number : FJC26042AEZ
Top Revision Number : A0
Product/Model Number : C9124AXI-A

What could be the problem?

[Scott Fella]

What model is the ME?  Have you searched the forum, because there are some post regarding 91xx joining Mobility Express.

https://community.cisco.com/t5/wireless/wifi-6-ap-s-9115-9117-9120-with-mobility-express/td-p/3957212

https://community.cisco.com/t5/wireless/connecting-cisco-ios-ap-9100-to-mobility-express-controller/td-p/4010355

[H&M]

Hello Scott, the mobility express software is running under a 2802i access point and it is running version 8.10.151.0

I already have some C9120 and C9115 access points joined the mobility express but now that Im trying to join the C9124axi I been having problems.

AP488B.0A76.715C#[*01/22/2022 02:31:44.5321]
[*01/22/2022 02:31:44.5321] CAPWAP State: Discovery
[*01/22/2022 02:31:44.5352] Discovery Request sent to 255.255.255.255, discovery type UNKNOWN(0)
[*01/22/2022 02:31:44.5363] Discovery Response from 10.4.209.222
[*01/22/2022 02:31:44.5364] Discovery response from MWAR 'ORZ-WC-OT01' running version 8.10.151.0 is rejected.
[*01/22/2022 02:31:44.5364] Failed to decode discovery response(status = 4).
[*01/22/2022 02:31:44.5364] CAPWAP SM handler: Failed to process message type 2 state 2.
[*01/22/2022 02:31:44.5364] Failed to handle capwap control message from controller - status 4
[*01/22/2022 02:31:44.5364] Failed to process unencrypted capwap packet 0x55b99da000 from 10.4.209.222
[*01/22/2022 02:31:44.5364] Failed to send capwap message 0 to the state machine. Packet already freed.

[Scott Fella · Accepted solution]

I don't think that model is supported on ME.  Take a look at the matrix and search 9124, it's toward the middle.

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

[Scott Fella]

Additional info:

Cisco Catalyst 9124AX Series Outdoor APs are supported on Cisco Catalyst 9800 wireless controller-based products

https://www.cisco.com/c/en/us/td/docs/wireless/access_point/9124ax/install-guide/b-hig-9124ax/overview.html#c9124_features

[H&M]

Thanks for your help Scott, you are right.

[Rich R]

Correct 9124 is not supported by ME.  Easiest place to check is table 1 of the release notes:
https://www.cisco.com/c/en/us/td/docs/wireless/access_point/mob_exp/810/release_notes/b_ME_RN_810.html#me-supp-ap