Restoring a backup should always work, but I assume you don't have one.
AFIAK, the password/forgetme! is the only way to get back into a controller without wiping the configuration, but it only works from the serial console (not via SSH), and console access can be disabled/password protected, in which case that doesn't work either. What version do you have installed on the controller?
If the controller is on AOS8 under a Mobility Conductor, or on AOS10 under Central, the configuration is stored there as well.
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Herman Robers
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If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check
https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
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