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Troubleshooting the SMC 8004 Cable Modem

Last Updated: Wed, 04 Jan 2012 > 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 SMC 8004 cable modem.

Solution


Installation

If you need help setting up your cable modem, use the following articles:


The SMC 8004 is a DOCSIS 1.x cable modem. 

Front View

After the cable modem has successfully registered on the network, the Power, Cable, and Status 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 SMC 8004 has the following ports available on the back of the modem:

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

Modem Lights

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

Ethernet Connection - Modem functioning correctly

USB Connection - Modem functioning correctly

Modem Looking for Cable Connection 

Modem LightStatusProblemSolution
PowerSolid GreenNone.N/A
OffNo power.Verify power supply connections and electrical outlet. Also make sure the outlet is not connected to a switch.
CableSolid GreenNone.N/A
Blinking OrangeModem is searching for the downstream.Verify all cable connections and try resetting the modem. If cable is OK and modem reset does not work, contact Customer Support.
Solid OrangeDownstream frequency found, still looking for upstream.Verify all cable connections and try resetting the modem. If cable is OK and modem reset does not work, contact Customer Support.
OffNo connection between the Ethernet/USB and the computer.Verify all cable connections and try resetting the modem. If cable is OK and modem reset does not work, contact Customer Support.
StatusSolid GreenNone. Modem is ready for data transfer..N/A
Flashing GreenModem is registering with headend. Looking for upstream.Verify all cable connections and try resetting the mode. If this does not resolve the issue, contact Customer Support.
ETHSolid GreenNone. Successfully found the computer through an Ethernet connection.N/A
Blinking GreenNone.N/A
OffNo Ethernet found.Verify Ethernet cable connections, the TCP/IP settings and the NIC. You might need to reinstall the NIC drivers. If this does not resolve the issue, contact Customer Support.
USBSolid GreenNone. Successfully found the computer through USB connection.N/A
Blinking GreenNone.N/A
OffNo USB found.Verify USB cable connections, the TCP/IP settings and the NIC. You might need to reinstall the NIC drivers. If this does not resolve the issue, 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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