D-Link DSL-G2452GR User Manual page 117

Section 4 - Configuration
Miscellaneous
Language Choose your desired router UI language from drop
down list.
Factory Click to reset the router to factory default settings.
Backup Click to save current configuration to a file.
Restore Click to load previously saved configuration file to the
device.
Save Click to save current settings.
Reboot Click to reboot device.
Idle time Specify a period of inactivity (in minutes) after which
the device will log you out.
D-Link DSL-G2452GR User Manual 113