D-Link DVG-1120M Manual page 26

Web-based Management (continued)
Factory Reset
Before performing a Factory Reset, be absolutely certain that this is what you
want to do. Once the reset is done, all of the device's settings stored in NV-
RAM will be erased and restored to values present when the device was
purchased.
Click on Reset to Factory Default to reset the NV-RAM to the default values
that were present when you purchased the device.
Note: After performing the Factory Reset, make sure to redefine the IP
settings for the device in the IP Configuration menu. Then perform a
Restart System on the device. After these three procedures are performed,
your Factory Reset is complete.
Click on Reset without losing user settings to reset the unit. This resets all
settings except IP, PPPoE username/password, Notify Entity, RGW name, and
DNS settings.
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