Look for the indented Factory Default button, and hold it in for 8 seconds before release.That will reset it to Factory Default mode, where Ruckus admin account is "super/sp-admin".
If you can't login with super/sp-admin after a factory default, you don't appear to have a Ruckusofficial AP, possibly from an OEM who resells our product with their own proprietary admin login.
Where did you get your AP?