ZyXEL Communications XGS4600 Series User Manual page 608

Make sure you save your configuration into the Switch's non-volatile
memory each time you make changes. Click Save at the top right of the
Web Configurator to save the configuration permanently. See also
58.2.2 on page 520
I accidentally unplugged the Switch. I am not sure which configuration file will be loaded.
If you plug the power cable back to the Switch, it will reboot and load the configuration file that was
used the last time. For example, if Config 1 was used on the Switch before you accidentally unplugged
the Switch, Config 1 will be loaded when rebooting.
Chapter 73 Troubleshooting
for more information about how to save your configuration.
XGS4600 Series User's Guide
608
Section