3Com WL-550 User Manual page 17

Physical Features 15
9 Reset Button
The reset button allows you to reboot the Router, or to restore the default
factory settings. Push for one second to perform a system reboot. All of
your settings will remain upon restarting. Push for 8 seconds to reset the
Router to the factory default settings.
To perform a system reset without losing configuration settings, click the
Restart Router button on the web management screen. The
configurations that you have set previously will not be changed back to
the factory default settings. Refer to "Restart Router".