Whilst the AP535s and IAP325s were upgraded (from 8.6.0.5) to the 8.7.0.0 firmware (controller-less setup), the IAP225's went offline and cannot be restarted again. Also a manual reset of (some) of the IAP225 didn't help.
Do we know if the IAPs 225 are supported by the 8.7.0.0 firmware? And how do I get the IAP 225 back online in a working configuration with the AP535s and IAPs 325s?