This article gives you an overview of helpful and amazing CLI commands, available but not yet integrated within the web interface. (commands are available from 4.33 - WK30 or later) can be found here:
Note: All CLI commands need to be entered by "SSH". Some of them need to be executed via the following mode before the command will be accepted.
This command can help you evaluate the Speed from WAN without needing a test computer in the LAN segment.
Web Server Limitation:
ip http max-connection-per-ip <10..200>
This command limit the simultaneous session a Hotspot User can create on a Web-Server (USG Web interface). It can help schools/student living rooms, where people may try to open GUI a hundred times and try to attack it. The suggestion is to set a limit to 20.
Flash is full (100% Flash Usage)
debug system _disk-cleanup
In some rare conditions it could be that the Flash is full (100%). To clean it up, you can run the above command.
FAN Speed Check / Temperature Check
If you want to see FAN Speed or temperature information, you can use the debug hardware features.
Increase Console level Output
debug kernel console-level 8
Is mainly used for deep debugging cases.
Check interface statistics
This command is useful when you need to see detailed statistics on an interface basis.
debug interface ifconfig
debug interface show mapping