1. You need to console the AP
2. Hit <Enter> to stop autoboot: 2
3. Purgeenv ( to remove config and make a default config )
4. factory_reset ( to reset all config and setting )
5. reset ( reboot AP )
6. Wait until AP rebooted and User and Password appear
7. User : admin Password : AP Serial Number
8. If ask you change password please change to your desirable password
9. Type #convert-aos-ap CAP <Controller IP>
10.Converting to Controller based AP. Will automatically reboot when done
11.Make sure the AP got an IP from the Controller ( After reboot inside CLI )
12.Check AP inside controller once 2 LED is static.
#EOF
p/s : Tested on IAP 325 Model.