Here is my problem. Most of my AP R320 join my cloud and it works fine. But I used two of them before, for another customer, and I installed this version of the firmeware (RUCKUS Unleashed AP 188.8.131.52.253 (GA Refresh2)). When I boot them up, they don't join my cloud, even if I type their SN in the cloud. I guess I don't have the good firmeware.