How to restore the M6240L to factory default settings

There are 2 methods of restoring defaults

Method 1: Press and hold the reset button for 15 seconds. The device will reset to factory defaults and reboot.

Method 2: Log into the device, click on Utilities, click on Restore Defaults, click on the Restore button next to "Restore Modem to Factory Default State". The device will reset to factory defaults and reboot.