In GUI window click on file management option then select Copy/Save Configuration. now you will see the option of transfer method select Via HTTP/HTTPS, select backup in save action option, in source file type select running configuration file and encrypted option in sensitive data option simply click on Apply button.
For WAN configuration please visit this link: http://minedutech.com/2019/05/28/sf500-switch-wan-configuration/
You need to add a widget, row, or prebuilt layout before you’ll see anything here. 🙂
