Netgear CM400 Manuel D’Utilisation

If the cable modem does not save changes you made, do the following:

When entering configuration settings, be sure to click the Apply button before moving to 
another screen, or your changes are lost. 

Click the Refresh or Reload button in the web browser. The changes occurred, but the 
web browser might be caching the old configuration.

If your cable modem cannot access the Internet but the Internet LED 

 lights green, 

register the cable MAC address or device MAC address of your cable modem with your cable 
Internet provider (see