We are running a pair of demo units and noticed that after letting the GUI sit idle for an hour it locks us out. I've been using the default admin account and thought that changing the password would fix it, but no luck. The only resolution is to reboot both WAF firewalls to gain access to the GUI again. We can access the console menu with no issues, but only resolution is to use the consule menu to force a reboot.
We are running the v360 on firmware 7.8.1.016 on VMWware ESX 5.5 with all the latest patches.