In my case, Your action, policy accept-all, is good working.If R5100 have 104.0.0.0.1306 for F/W, you have to upgrade FW to 104.0.0.0.1350.
https://support.ruckuswireless.com/documents/1126-field-advisory-number-20160817-01-r510-104-0-0-0-1...Then try set diretor ip or set scg ip.
If though you do that above , you don't work still, you have to try a command as "set scg ip x.x.x.x".
It may a bug for provisioning.
If it is intended working, Ruckus have to provide us a details for provision.
In APs had ZD or standalone FW, sometimes it happens they don't join to SZ.
Regards.