Just got my equipment yesterday but can't get APs to join. Spoke to support and suggested I update ZoneDirector to 9.5.2 which I have done, no difference. Automatically approve is enable but still no go. Can't find anything in documentation that helps.
Issue turned out to be a know bug with the version of firmware on the ZoneController. Apparently you need to have firmware updated to version above 9.4.0 or it messes up the AP when they try to connect. All good now.
So I have Version 184.108.40.206 Build 12 and am experiencing the same issue, AP will Boot, I can see it acknowledge in the ZD and then disconnects, AP will go in and out of Pings. Never reboots automatically to begin provisioning, physically rebooting does nothing, AP shows disconnected. So do I need to downgrade to 9.4.0