We are trying to create a device access policy to limit a WLAN to only school Chrome OS devices. Unfortunately, it doesn't seem that Chrome OS devices are listed in the OS/Type filter for Device Access Policy. Chrome OS devices are listed when viewing clients currently connected to our WLANs, so it seems this is an omission to the list rather than the ZoneDirector being unable to read Chrome OS devices.
We are on a ZoneDirector 3100, firmware 18.104.22.168 build 14.
We are doing the same thing. We found that restricting Android also caught Chrome devices. Ruckus support told us to upgrade to Ver 22.214.171.124 and Chrome would be listed. Note: Chrome OS must be at Ver 50.xx or above.