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General Troubleshooting
I can’t access the internet or my email.
• Check all of the connections to your cable modem.
• Your Ethernet card or USB port may not be working. Check each product’s documentation
for more information.
• The Network Properties of your operating system may not be installed correctly or the
settings may be incorrect. Check with your ISP or cable company.
Nothing happens when I press the on/off button.
• Make sure that the AC power supply is fully plugged into a wall outlet.
• Make sure that the power supply cord is fully inserted into the AC adapter connection on
the back of the modem.
• Double-check that the AC outlet you are using is not controlled by a switch that is turned
off.
All of the lights are flashing in sequence.
• This means the cable modem is automatically updating its system software. Please wait for
the lights to stop flashing. The updating process typically lasts less than one minute.
• Do not remove the power supply or reset the cable modem during this process.
The light labeled EMAIL (MESSAGE)* is flashing (if available).
• This means that you have new mail to check or a message from your cable operator.
General Troubleshooting
* Actual button or LED names may vary per model.