DNS is recommended to be provided by the DHCP server. So change your DHCP server to provide the DNS servers, where I would provide at least 2 for redundancy to avoid the problem you seem to experience now.
------------------------------
Herman Robers
------------------------
If you have urgent issues, always contact your HPE Aruba Networking partner, distributor, or Aruba TAC Support. Check
https://www.arubanetworks.com/support-services/contact-support/ for how to contact HPE Aruba Networking TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or HPE Aruba Networking.
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.
------------------------------
Original Message:
Sent: Mar 14, 2025 03:08 AM
From: yeowkm
Subject: change DNS server for central AP
how do i change the DNS server settings for all the AP in Aruba Central ?
for some reason, our main DNS server is having some issue, so we decide to promote the backup DNS server to main.