Rebooting is used to activate certain settings. It is also necessary after upgrading firmware, resetting configurations to factory defaults, or importing a configuration file. You can choose a reboot without delay or schedule a reboot to take place after a number of hours - see the pull-down list.
Note: Rebooting clears the contents of the log. Copy the log (Log > View) to a file, or force a forwarding (Log > Forward) before rebooting if you want to preserve its contents.