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Linksys BEFCMU10v3 Cable Modem

Last Updated: Fri, 06 May 2011 > Related Articles

Summary

Learn about the available ports and an explanation of the status lights on a Linksys BEFCMU10v3 cable modem.

Solution

The Linksys BEFCMU10v3 is a DOCSIS 2.0 cable modem. 

Front View

After the cable modem has successfully registered on the network, the Power, Cable, and USB or Ethernet 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 Linksys BEFCMU10v3 has the following ports available on the back of the modem:

  • POWER - Connects the cable modem to the power adapter.
  • RST - Used to reset the modem. 
  • LAN - Connects to the Ethernet port on your computer.
  • USB - Connects to the USB port on your computer.
  • CABLE - Connects to the cable wall outlet.

    The RST button is for maintenance purposes only. For more details, refer to the Modem Lights section.

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 Light

Status

Problem

Solution

Power

Solid Green

None. Power is properly connected.

N/A
OffNo power.Verify power supply connections and electrical outlet. Also make sure the outlet is not connected to a switch.
CableSlow
Flashing green
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 Flash ModemSearching for cable connection.If this is a new modem or a replacement modem, you must contact Cox with your MAC address Click Here. If there are several MAC addresses on the modem, please use the “HFC” or “RF” MAC address. View MAC Address Label
OffNo connection cable connection.Verify all cable connections and try resetting the modem. If cable is OK and modem reset doesn't work, contact Customer Support.
Activity

Flashing Green  

Traffic is passing through the cable modem port.  N/A
EthernetSolid GreenNone. Successfully found the computer through an Ethernet connection.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
OffNo USB found.Verify USB cable connections, the TCP/IP settings and the USB cable. You might need to reinstall the USB 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.



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