Upgraded my home R300 from 18.104.22.168.15 to 22.214.171.124.194 and my son's Surface 2 RT won't connect to wifi anymore. All other devices seemed to connect just fine. As he was quite mad at me, I downgraded back and everything is fine again.
What is wrong with Ruckus software releases these days? Every release seems to only add more restrictions and new bugs. I think it's better to stick with 9.8 which seems to be the last stable release in my experience.