I have a couple EAP 245 v3 that I am trying to manage with Omada Software controller. All devices and the Windows 2012 R2 Server running the controller are on the same subnet. EAP245 are up-to-date on the latest firmware. Whenever I tried to adopt the EAP in v4.1.5 or higher, the EAP failed to adopt with the error message the device failed to adoption because the device does not respond to the adoption command (or something very similar). After much frustration, I uninstalled the controller and installed v3.2.14. Devices adopted and provisioned just like they are supposed to. The EAP were factory reset prior to attempting to adopt in 4.3 and then 4.1.5.
The fact they are adopting fine in 3.2.14 makes me pretty sure there's no firewall blocks or network issues in play, but outside of that I'm stumped - any thoughts as to why they might not be adopting in version 4 of the software controller?