vx9000 issue - CONFIG_REVISION Configuration revision updated

[marconet_22]

Hi

I have vx9000 as virtual controller to multisite, release 7.7.1.3-005R, various APs type

One site, AP305cx, every first of the mounth every APs reboot or disconnect from controller and re-adopt disconnect and re-adopt many time for 20 minutes.

From event history i see many log like this:

CONFIG_REVISION Configuration revision updated to 11 from 12
2026-01-02 02:44:04 AP42-Mag-Vercelli SYSTEM CONFIG_REVISION Configuration revision updated to 11 from 11
2026-01-02 02:44:04 AP06-Mag-Vercelli SYSTEM CONFIG_COMMIT Configuration commit by user 'cfgd' (update own config) from '127.0.0.1'
2026-01-02 02:44:04 AP42-Mag-Vercelli SYSTEM CONFIG_COMMIT Configuration commit by user 'cfgd' (update own config) from '127.0.0.1'
2026-01-02 02:44:04 AP06-Mag-Vercelli CFGD ACL_RULE_ALTERED USER: cfgd session 87: ACL BROADCAST-MULTICAST-CONTROL rule is getting altered
2026-01-02 02:44:04 AP42-Mag-Vercelli CFGD ACL_RULE_ALTERED USER: cfgd session 23: ACL BROADCAST-MULTICAST-CONTROL rule is getting altered
2026-01-02 02:44:04 AP06-Mag-Vercelli DEVICE ADOPTED_TO_CONTROLLER Joined successfully with controller 'ARSBARWARECTL'(12.BA.08.E9)
2026-01-02 02:44:04 AP42-Mag-Vercelli DEVICE ADOPTED_TO_CONTROLL

Issue resolved without any action to the vx9000.

What can i check?

[Angelo_Cargnel]

This issue sounds very familiar to me.
There is some error in the AP configuration on the controller, which will break the adoption once the AP receives it's configuration from the controller.
What happens?

1. The AP "AP42-Mag-Vercelli" adopts to the VX9000 (Configuration is on revision 11).
2. The VX9000 will send the configuation to the AP (Configuration revision updated to 11 from 12).
3. The AP will update it's configuration due to to this.
4. After implementing the configuration changes, the adoption of the AP gets lost.
5. The AP will recognize the loss of the adoption to the controller and revert back to the "good known working configuration" (Configuration revision updated to 11 from 11 and Configuration commit by user 'cfgd' (update own config) from '127.0.0.1').
6. The AP performs a warm boot, re-adopts and the loop starts again (for ever).
   

To proof my guess please use the CLI command "show adoption config-errors AP42-Mag-Vercelli" in the VX9000.
You should some error messages.
Please post those together with the AP profile and the AP override and I will have a look for the configuration error.