Configure Administrator Password on your Actiontec C2000A modem

Administrator Password prevents outsiders from accessing the modem's firmware settings. After creating a username and password, you will need to enter them every time you access the modem's firmware GUI located at

NOTE: If you are unable to access your modem's GUI using the admin username/password, you can reset your modem to factory defaults. After resetting your modem, try accessing the modem GUI using the admin username/password printed on the sticker on your modem.
Modem Advanced Step 1-3
  1. Connect a device directly to your modem.
  1. Open a web browser and go to
  1. Login to your modem by entering the Admin Username and Admin Password, then select "Apply." If your modem is using the default settings, this information is located on the modem sticker.
Learn more about password security best practices.
  1. Select "Advanced Setup."
  1. Select "Administrator Password."
  1. From here you can view or edit the "Administrator Password" settings.
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