Catalyst 9100 Access Points not able to communicate with Cisco Aironet

[itadmin4057]

As of now, we are using WLC and Access Points as per the following make and model:

Cisco Aironet 1815i Access Point

Model: AIR-AP1815I-D-K9

Software Version: 8.10.185.0

Now, we have purchased new Catalyst 9100 Access Points:

AP Model number: C9105AXI-D

After configuring CAPWAP, it detects with Aironet WLC but is unable to connect with IP, and the following error occurs in the Putty connection:

[*12/16/2023 02:39:37.0000] CAPWAP State: DTLS Setup

[*12/16/2023 02:39:37.0680] dtls_verify_server_cert: Controller certificate verification successful

[*12/16/2023 02:39:37.4260]

[*12/16/2023 02:39:37.4260] CAPWAP State: Join

[*12/16/2023 02:39:37.4320] Sending Join request to 192.168.0.90 through port 5265

[*12/16/2023 02:39:42.1840] Join Response from 192.168.0.90

[*12/16/2023 02:39:42.1840] AC accepted join request with result code: 0

[*12/16/2023 02:39:42.1840] Received wlcType 1, timer 120

[*12/16/2023 02:39:42.1950]

[*12/16/2023 02:39:42.1950] CAPWAP State: Image Data

[*12/16/2023 02:39:42.1960] AP image version 17.6.4.56 backup 0.0.0.0, Controller 8.10.185.0

[*12/16/2023 02:39:42.1960] Version does not match.

[*12/16/2023 02:39:42.2820] status 'upgrade.sh: Script called with args:[PRECHECK]'

[*12/16/2023 02:39:42.3900] do PRECHECK, part1 is active part

[*12/16/2023 02:39:42.4380] status 'upgrade.sh: /tmp space: OK available 100800, required 40000 '

[*12/16/2023 02:39:42.4390] wtpImgFileReadRequest: request ap1g8, local /tmp/part.tar

[*12/16/2023 02:39:42.4420] Image Data Request sent to 192.168.0.90, fileName [ap1g8], replicaStatus 0

[*12/16/2023 02:39:42.4440] Image Data Response from 192.168.0.90

[*12/16/2023 02:39:42.4440] AC accepted join request with result code: 0

[marce1000]

       >...AP image version 17.6.4.56 backup 0.0.0.0, Controller 8.10.185.0
                 Version does not match.
  - It looks like the AP has been used on the 9800 controller environments or just came with that image ; in that case going back to aireos or mobility express based platforms is not always possible. You may need to install the corresponding image manually on the C9105AXI-D access point : 15.3(3)JK9

 M.

[Rich R]

What comes in the logs after what you pasted in above?  Does the image download and install?

As @marce1000 says you can install the image manually. 

You should also upgrade the WLC to 8.10.190.0 as per TAC recommended link below.