Software versions you use is old, but they both must work. Check that you actually can ping AP from ZD and vice versa. if you have a router or firewall between APs and ZD -- check rules.
Are you using static IP assignment to APs? From the moment when Ruckus changed AP auto-discovery functionality (I think it was after 9.5) DHCP is required to initially find APs. I know that you see that AP is managed by ZD, but try to set ZD address through CLI anyway:
connect directly to AP through SSH, using ZD credentials
set director IP XXX.XXX.XXX.XXX
and reboot AP.
Also check that
get director IP
really shows correct ZD IP address...
If this doesn't help, configure DHCP for this network and factory reset APs (you can do it from WEB user Interface or, better. by button) and than set director IP.
It works almost 100%.
If still not successfull -- open Support case with Ruckus, asit may be corrupted image on ZD.
Hope it helps,