I found this topic accidentally and it reminded my unsuccessful fight for getting the AD-authentication working for management over a year ago for our vSZ cluster 184.108.40.206.302. I also had a ticket open then but it turned out that AD/LDAP is barely supported.
I would like to upgrade to 5.2 and then try once again if there are any changes and perhaps look for the above posts in this thread but I thought I'd put here some moments from the ticket as copy-paste's that I wrote then since I did some extensive testing to get it working and found "interesting" things. This is my first experience with Ruckus and it was a brand new setup.
1. The Administration\Admins and Roles\AAA server with type LDAP and the dialogue window has two mistakes:
1.1. "Admin Domain Name" is wrong, it is actually "Admin Distinguished Name" or shorter "Admin DN" as I saw here: