Check the 'best-answer', which was reported to resolve the issue. Make sure the APs are running the exact same version before you join them in the same network. Use a separate network with only one specific AP type to upgrade; or if you have a 305 cluster running, up/downgrade that to a version that supports both 205 and 305; then power off all the APs, bring up the 205s, upgrade firmware and make sure the cluster of 205's is up, bring those down (assuming the 305 cluster has the desired configuration), bring up the 305 cluster, wait till operational, add the 205's. You will have now a cluster of 305's and 205's.
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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.
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Original Message:
Sent: Dec 27, 2020 05:51 PM
From: Dadang Latif
Subject: IAP205 cluster with new IAP305
Hi All, is the problem solved?so what is the solution? Because I am facing same situation as IAP 205 won't join IAP 305 cluster or reverse. Please advice.
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Dadang Latif
Original Message:
Sent: Oct 20, 2020 03:32 AM
From: Matthew Syvret
Subject: IAP205 cluster with new IAP305
This is what I ended up doing, all now working. Thanks.