DSL-522T ADSL Router User Guide
Save Settings and Reboot
When you have configured the DSL-522T with the settings you desire, make sure you save those settings. To save the system configuration settings, click the Tools tab. You will be presented first with the Administrator Settings window. This window is described in the next chapter. To save the current configuration, click the System button to view the System Settings window pictured here.
System Settings window
To save the settings you have configured, click the Save and Reboot button under Save Settings and Reboot the System.