ZyXEL Communications NWA-3160 - V3.70 Manual page 361

Saving Your Configuration
In the NWA some commands are saved as you run them and others require you to
run a save command. See the related section of this guide to see if a save
command is required.
Note: Unsaved configuration changes are lost once you restart the NWA
Logging Out
Use the exit command to log out of the CLI.
NWA-3160 Series User's Guide
Appendix E How to Access and Use the CLI
361