Scientific Atlanta DPX2203, EPX2203 manual Telephone Service Troubleshooting

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Telephone Service: Troubleshooting

Common Troubleshooting Suggestions

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 cable service provider to determine whether you are using the correct cable.

There is no dial tone when I lift the telephone handset.

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

•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 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.

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

Check and Correct

If your cable modem does not operate as expected, the following tips may help. If you need further assistance, contact your cable service provider.

•Verify that the plug to your cable modem AC adapter is properly inserted into an electrical outlet.

•Verify that your cable modem AC adapter is not plugged into an electrical outlet that is controlled by a wall switch. If a wall switch controls the electrical outlet, make sure the switch is in the ON position.

•Verify that the POWER and CABLE lights on the front panel of your cable modem are on.

•Verify that all cables are properly connected, and that you are using the correct cables.

•Verify that your cable service is active and that it supports two-way service.

•Verify that you have called your cable service provider and given them the serial number and MAC address of your cable modem, if your cable service provider requests this information.

•If you are using a cable signal splitter so that you can connect the cable modem to other devices, remove the splitter and reconnect the cables so that the cable modem is connected directly to the cable input. If the cable modem now functions properly, the cable signal splitter may be defective and may need to be replaced.

4004041 Rev A

WebSTAR DPX2203 or EPX2203 VoIP Cable Modem User’s Guide

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Contents WebSTAR DPX2203 EPX2203 VoIP Cable Modem User’s Guide This Guide OverviewIntroduction Important Rules for Safe Operation This SectionRead and Retain These Instructions Cleaning the EquipmentPlacement Important Rules for Safe Operation Damage that Requires Service Power Cord ProtectionPower Sources GroundingSection B Before You Begin Equipment Checklist Check Your EquipmentSection C Front and Back Panel Components WebSTAR Cable Modem Front Panel Front Panel ComponentsWebSTAR Cable Modem Back Panel Back Panel ComponentsInitial Power Up, Calibration, and Registration Functions of the Front Panel LightsNormal Operations Front Panel Lights During Normal OperationsSpecial Conditions Front Panel Lights During Special ConditionsSection D Internet Service Installation Internet Service OverviewSelecting a Location for Your Modem Internet Service Before You BeginContacting Your Local Cable Service Provider Internet Service System Requirements Minimum System Requirements for PCsInternet Service Install the Cable Modem Installation DiagramInstalling the Modem for High-Speed Data Service Internet Service Configure TCP/IP Microsoft Windows 95, 98, 98SE, and MEResults Microsoft Windows Microsoft Windows XPMacintosh Internet Service Install USB Drivers Microsoft Windows 98, 98SE, or MEMicrosoft Windows Microsoft Windows XP Internet Service Frequently Asked Questions Frequently Asked QuestionsInternet Service Troubleshooting Common Troubleshooting SuggestionsCheck and Correct Section E Telephone Service Installation Telephone Service OverviewTelephone Service Before You Begin Selecting a Location for Your Modem Number of Telephone Devices Telephone Service Telephone RequirementsTelephone Wiring Requirements Telephone Device TypesTelephone Service Install the Cable Modem Installing the Cable Modem to Provide Telephone ServiceInstallation Diagram Installing the Cable Modem Telephone Service Frequently Asked Questions Can I use my existing phone number with the cable modem?Telephone Service Troubleshooting There is no dial tone when I lift the telephone handsetDocumentation Copyright Notice TrademarksDisclaimer Software Use NoticeFCC Declaration of Conformity FCC ComplianceUnited States FCC Compliance Canada EMI Regulation FCC PartIC Industry Canada Notice For Information If You Need Technical Assistance
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