Could you please let us know about the below details:
1. What is the software version. I'm trying to understand if this is a standalone AP or managed by the controller.
2. Since you are not able to access the AP on the https://ipaddress
. I'm guessing it could be on the controller ap firmware.
3. If yes, you can enable the https from the CP cli using the command "set https enable".
If managed by the controller, login to the controller >> Access Points >> Edit the AP >> Disable the "Wlan Service".
You can also disable the SSID from the AP CLi using the command "set state down"