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4001231 Rev A WebSTAR Model DPX213 VoIP DOCSIS Cable Modem User's Guide 27
Troubleshooting, Continued
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 indicators on the front panel of your cable
modem are illuminated.
• 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 your TCP/IP is properly installed and configured if you are using the
Ethernet connection.
• Verify that you have followed the procedure for Installing the USB Drivers for
Windows 9898SE/ME/2000/XP, earlier in this guide, if you are using the USB
connection.
• Verify that you have called your cable service provider and given them the serial
number and MAC address of your cable modem.
• 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.