If you are not familiar with setting up RAPs, I'd recommend to work with your Aruba partner, or open a case with support on what the FETCH_RSP. This probably is an issue with the authentication/allowlisting service for your RAPs which can be done in multiple ways but if you have multiple controllers needs to be centralized or synchronized.
The Authentication Failed is probably because the RAP is only allowlisted on one of your controllers, or RADIUS authentication does not work from both sites.
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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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