Why is the AP config changed reported after the AP goes offline?

Why is the AP config changed reported after the AP goes offline?​

The literal translation is AP configuration change, actually it is the failure of some key events, and the reason will be recorded as ap config changed.

So, what is a key event? For example, add client. After the client goes online, the AC notifies the AP to add information. If it fails, it will be recorded as a critical time failure.

So why does the AC notify the AP that adding client information fails? The main reason is that the link between the AC and the AP is disconnected, the status of the AP is not controlled, and the information of the AC and the AP cannot be synchronized.

At this time, the reason for AP offline will be recorded as ap config change. At this time, it is still necessary to focus on troubleshooting the link communication problem between the AC and the AP.