Hi,
We've been using Ruckus in conjunction with Lightspeed for some time now. To get the authentication from Ruckus to pass through (and persist whilst roaming across access points) you need to do the following:
Add Lightspeed as a RADIUS Accounting server in Ruckus (under AAA servers)
Then set the Accounting server to Lightspeed in the advanced options section on the WLAN you are using with interim updates set to 15 minutes.
Now you need to SSH on to your ZoneDirector and do the following:
ruckus>enable
ruckus# config
ruckus(config)# wlan
ruckus(config-wlan)# show
Roaming Acct-Interim-Update= Enabled
More details are in the Ruckus knowledgebase https://support.ruckuswireless.com/answers/000002813
After that it should all work