Cisco Systems DPQ3212 Having Difficulty?, Common Troubleshooting Issues

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Having Difficulty?

Having Difficulty?

Common Troubleshooting Issues

I don't understand the front panel status indicators

See Front Panel LED Status Indicator Functions (on page 35), for more detailed information on front panel LED status indicator operation and function.

The modem does not register an Ethernet connection

Verify that your computer has an Ethernet card and that the Ethernet driver software is properly installed. If you purchase and install an Ethernet card, follow the installation instructions very carefully.

Verify the status of the front panel LED status indicators.

The modem does not register an Ethernet connection after connecting to a hub

If you are connecting multiple PCs to the cable modem, you should first connect the modem to the uplink port of the hub. The LINK LED of the hub will illuminate continuously.

The modem does not register a cable connection

The modem works with a standard 75-ohm RF coaxial cable. If you are using a different cable, your cable modem will not function properly. Contact your service provider to determine whether you are using the correct cable.

There is no dial tone when I lift the telephone handset

Your telephone wiring may be connected to the wrong RJ-11 port on the cable modem. The cable modem has two telephone ports. Verify that you are connected to the correct telephone port.

There may be a problem with your telephone set. Use a different telephone set and listen to hear dial tone.

There may be a problem with your home telephone wiring. Use a telephone and connect directly to the same RJ-11 port on the back of the unit. If the dial tone is working here but does not work at other locations in the home, a professional may need to diagnose and repair a problem with your telephone wiring.

Verify that the phone company has removed the previous telephone service from your home telephone wiring.

Your telephone service may not be enabled from your cable telephony service provider. Contact your cable telephony service provider for more information.

4019777 Rev B

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Contents This Document Important Safety InstructionsImportant Safety Instructions Aviso a los instaladores de sistemas Catv Mitteilung für CATV-TechnikerGround the Product Power Source WarningVerify the Power Source from the On/Off Power Light SafetyProtect the Product from Lightning Disposal Provide Ventilation and Select a LocationTelephone Equipment Notice Protect the Product When Moving ItCanada EMI Regulation Declaration of ConformityIntroduction Benefits and FeaturesIntroduction Front Panel Description Front Panel Description Back Panel Description Back Panel Description Minimum System Requirements for a PC What Are the System Requirements for Internet Service?Minimum System Requirements for Macintosh System Requirements for an Ethernet ConnectionAlready Have an Existing High-Speed Internet Access Account Do Not Have a High-Speed Internet Access AccountWant to Use the Cable Modem for Telephone Service Where Is the Best Location for My Cable Modem? Before You Begin How Do I Mount the Modem on a Wall? OptionalFollowing illustration shows the horizontal mounting option Location and Dimensions of the Wall-Mounting Slots Telephone Wiring Requirements What Are the Requirements for Telephone Service?Number of Telephone Devices Telephone Device TypesTo connect devices Connecting and Installing Internet DevicesPort on the back of the cable modem Rev B Installing USB Drivers on Windows 2000 Systems Installing USB DriversInstalling USB Drivers on Windows Vista Systems Installing USB Drivers on Windows XP SystemsHow do I arrange for cable telephony installation? Frequently Asked QuestionsRenewing the IP Address on Macintosh Systems Renewing the IP Address on Windows 2000 or XP SystemsConfiguring TCP/IP on Windows XP Systems How do I configure my PC for TCP/IP?Configuring TCP/IP on Macintosh Systems Configuring TCP/IP on Windows 2000 SystemsFrequently Asked Questions Having Difficulty? Common Troubleshooting IssuesCheck and Correct Tips for Improved PerformanceTEL2 Front Panel LED Status Indicator FunctionsFront Panel LED Status Indicators During Normal Operations Normal Operations AC Power appliedUsing the Modem Without a Battery How Do I Maintain the Battery?Charging the Batteries Replacing the BatteriesLocation of Battery Before Removing and Replacing the BatteryRemoving and Replacing the Battery, Housing Type Disclaimer TrademarksDocumentation Copyright Notice Software and Firmware Use
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