Hi@ster,
In the AP's diagnosis attempt, use the command: iwconfig radio radio-id vap vap-id to see if a vap has been generated on the AP.
<Huawei> system-view
[Huawei] diagnose
[Huawei-diagnose] iwconfig radio 0 vap 0 // vap-id = wlan id-1
Glad to help you! Any further questions, let us know.