We have a Ruckus network running on a Zone Director 3000 (9.12.2 build 101 fw), we are running entirely on R710 Access Points.
We are finding that the handful of surface 3 devices we have on Campus are unable to remain connected to an AP. They connect and then about a quarter of a second later they renegotiate on to a different AP, the ZD logs show the constant hoping. It happens so much the devices can not move much traffic.