Hi Maykeling,
Could you confirm the ZD version as well.
Also try SSH into the AP and run below commands.
get version
get director ip
ping xxx.xxx.xxx.xxx
set director ip xxx.xxx.xxx.xxxx
reboot
*Where x.x.x.x is the ZD's IP address.
Regards,
Syamantak Omer
Syamantak Omer | Sr.Staff TSE | CWNA | CCNA | RASZA | RICXI