According to reports from various users in the thread https://community.tp-link.com/en/business/forum/topic/529086, all types of EAP225 (V1, V3, Outdoor V1, etc.) have reports of failed adoptions with

We have a Windows Omada software controller that was in 5.0.15. There were three EAP225 connected to it. Yesterday we updated them to 5.0.7 and they have been stuck on ADOPTING since then. We have res