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Troubleshooting the Scientific Atlanta Webstar DPX-2100 Cable Modem

Last Updated: Wed, 23 Nov 2011 > Related Articles

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Summary

This article provides an overview of the available ports and an explanation of the status lights on a Scientific Atlanta DPX-2100 cable modem.

Solution

 


Installation

If you need help setting up your cable modem, refer to the following articles.


The Scientific Atlanta DPX-2100 is a DOCSIS 2.0 cable modem. 

Front View

After the cable modem has successfully registered on the network, the POWER, PC, and CABLE indicators illuminate continuously to indicate that the cable modem is online and fully operational. For more details, refer to the Modem Lights section.

Back View

The Scientific Atlanta DPX-2100 has the following ports available on the back of the modem:

  • Power - Connects the cable modem to the power adapter.
  • Reset - Resets the cable modem. 
  • ETHERNET - Connects to the Ethernet port on your computer.
  • USB - Connects to the USB port on your computer. 
  • CABLE IN - Connects to the cable wall outlet.

Modem Lights

The modem lights indicate the current status of your cable modem. To troubleshoot any connection problems, use the table below.

Ethernet and USB Connection - Modem functioning correctly

Modem Looking for Cable Connection

Modem Looking for Computer Connection 

Modem LightStatusProblemSolution
PowerOffNo power.Verify power supply connections, the power switch on the modem itself, the electrical outlet, and make sure the outlet is not connected to a switch.
PCoff/BlinkingModem is unable to see Ethernet/USB signal.Verify cable connections and try resetting the modem.  If cable is ok & modem reset doesn’t work, contact Customer Support.
SolidNone. Illuminates solid green to indicate that an Ethernet/USB carrier is present.N/A
CableSlow
Flashing
Searching for cable connection.Verify all cable connections and try resetting the modem. If cable is OK and modem reset doesn't work, contact Customer Support.
Fast Flashing ModemSearching for cable connection.If this is a new modem or a replacement modem, you must contact Cox with your MAC address. If there are several MAC addresses on the modem, use the “HFC” or “RF” MAC address. View Mac address Label
OffNo cable connection.Verify all cable connections and try resetting the modem. If cable is OK and modem reset doesn't work, contact Customer Support.
CableBlinkingNone. Indicates software upgrade and to indicate cable activity.N/A
StatusSolidNone. Illuminates solid green when the modem is registered on the network.N/A
Blinking

The cable modem is booting up and not ready for data.

The cable modem is scanning the network and attempting to register.

The cable modem has lost registration on the network and will continue blinking until it registers again.

Verify cable connections and try resetting the modem.  If cable is ok & modem reset doesn’t work, contact Customer Support.

MAC Address Label

MAC addresses are written as 12 digits containing both letters and numbers (0-9, A-F). A MAC address is unique. The first six characters of the MAC address are unique to the manufacturer of the device.

Manufacturer Resources



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