Troubleshoot the Cable Internet Connection | NETGEAR CM400 specs

CM400 High Speed Cable Modem

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.

Troubleshoot the Cable Internet Connection

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 Contact Your Cable Internet Provider and Set Up Internet Service on page 9).

Troubleshooting

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NETGEAR CM400 user manual Troubleshoot the Cable Internet Connection

Contents

CM400 High Speed Cable Modem Trademarks SupportCompliance Contents Hardware and Internet Setup Front Panel Unpack Your Cable Modem LED descriptions Back Panel  To attach the feet Product LabelAttach the Feet  To cable your cable modem Cable Your Cable Modem Cable Internet Provider Contact Information  To set up your Internet connection Install.charter.com Manage and Monitor Specify the Cable Connection Starting Frequency Log In to the Cable Modem  To view the status of the cable modem initialization View Cable Modem Initialization  To view cable modem status View Cable Modem Status  To view and clear the event logs View and CLear Event Logs  To change the password for the user name admin Change the admin Password  To reboot the cable modem Reboot the Cable Modem  To reset the cable modem to factory default settings Reset the Cable Modem to Factory Default Settings  To erase the settings Use the Factory Reset Software Button Manage and Monitor Troubleshooting Cannot Log In to the Cable Modem Use LEDs to Troubleshoot Troubleshoot the Cable Internet Connection Technical specifications Technical Specifications