After a factory reset (pinhole) it will come up as a UAP and when factory default try to discover a controller, Central, Airwave, and existing Instant cluster. If none exist, it will continue as Instant.
If you have Instant APs in the same network segment (VLAN), they need to run the same firmware version to form a cluster (swarm) and operate as 'one'. With 105+205, you are running a firmware that is supported by both 105 and 205, which is old and not supported by the 505. So you can't run 105 and 505 in the same cluster (source).
If you convert an AP to standalone, you can run it in a network with other Instant APs (that do form a cluster). Standalone APs will not join another cluster, not accept other APs joining.
You can run multiple virtual controllers in the same network, but not in the same segment/subnet. If you have a separate VLAN for management for each of the virtual controllers, they can form their own clusters. But with separate management, no roaming (technically you could do L3 roaming), but I would not go there if you don't have to.
------------------------------
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: Oct 22, 2025 06:31 AM
From: TDM
Subject: Help to configure AP505 as a new Virtual Controller
Hi Herman,
Thanks so much.
Appreciate it.
How do I put the 505 into Instant AP mode? My guess is through the CLI.
Tricky part on the network, we have x14 105/205's. I think each might take on the roll of a virtual controller.
Sounds like might have to configure the 505 standalone on another network.
Then when we ready replace all the 105's at once with new 505s.
Not sure if i can have two virtual controllers running on the same network?
Thanks again