Reason that there is no automatic trust, is that unlike with web-sites where there is in DNS an official registration of the domain name, such a registration does not exist for WiFi networks SSIDs. Anyone can pick any SSID, so there is no way to tie that properly to a certificate.
So no, there are no (public, private) certificates that allow users to connect without certificate warnings/proper client configuration.
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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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