aware of client disconnection in 802.11ac access point specially in
case of Andriod devices and RA Link Wireless network cards. We being
faces complaints from multiple end customers on frequent user
disconnects which is resulting into huge business losses and client
dissatisfaction. We being following up with local Ruckus team but
situation remains same.
Are you using ChannelFly or SmartRoam for sticky clients? In my experience I've found those two features to be the biggest culprit in unexpected client disconnects. For troubleshooting, I'd recommend setting some static channel assignments, and disabling any sticky client roaming workarounds you may have turned on (SmartRoam is off by default, but ChannelFly may be on by default depending on your configuration settings in the initial setup)
Are those 802.11ac access points managed by SZ/ZD or Stand-alone? Have controller upgrade to latest stable release.
Create Separate SSID for RA Link Wireless NIC and have no smart roam and try static channel. Try Background scanning and also try with Static channels.
It is important to understand who initiating the dissassoc (either AP or Client).