my Guest Access network broke after upgrading to 18.104.22.168.186. Thinking this might have been related to the November
2016 certificate expiration noted at https://support.ruckuswireless.com/certificate
(even though Unleashed is mentioned nowhere), I purchased a certificate, but
this certificate is mostly useless as guests are redirected to the IP of the
virtual controller as opposed to the FQDN on the imported certificate, so
clients get a warning.