If you would like to reset the device to the factory default configuration, the simplest way is to log in to CLI mode and use the command below to reset the device:
Please use Putty on Windows or a similar SSH client to login into your switch. You will need to type in the IP of the switch as the client. You will get asked to enter the username and password for your switch. After the login, please enter the following commands:
Switch# erase running-config
Switch# write memory
We also often offer CLI-Reference-Guides on our FTP Server: ftp://ftp.zyxel.eu
Search for the folder of your switch and check if there is such a guide. For further help, please feel free to reach out to our support team!