Enable the Access Points debug component under ZD's Administer/Diagnostics
page, and Save Debug Info after next AP disconnect. Also go to Monitor/Access
Points page, after AP has come back, and click the System Info (first icon to the
right of the AP).
Open a ticket with Ruckus tech support, provide your ZD debug info and the AP
support info files, so we can analyze for known issues, or help advise what the
problem might be.