Everything is working now since we separated the APs into two different IP ranges and after that each group had its own controller. But I do have some concern which I would like to clear up.
Im trying to figure it out why would the IAP-303 promote its own controller when we already had a controller on.
What can be the reasion behind it?
I assume that is because the existing controller didn´t manage to upgrade the firmware of the IAP-303 so they promoted another controller to do so? I didnt checked for the default version of IAP-303.
What happens if the IAPs have the version lower than 8.3.0.0? Does it mean that they can not form or connect to a cluster? If so, should we uppgrade the firmware manually one-by-one?