Modem Information

Cable Modem

DOCSIS 2.0 with speeds of up to 25 Mbps on a wired connection.

Cox recommends a DOCSIS 3.1 modem or gateway

What does this mean?DOCSIS 2.0 has a maximum speed of 25 Mbps on the Cox network.

Highest Service Level



Front View

Front View

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After the cable modem has successfully registered on the network, the USB or Enet, Ready, and Sync indicators illuminate continuously to indicate that the modem is online and fully operational.


Back View

Back View

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The Ubee / Ambit SpeedStream 60678EU has the following ports available on the back of the modem.

  • Power – Connects the cable modem to the power adapter.
  • USB – Connects to the USB port on your computer.
  • Enet – Connects to the Ethernet port on your computer.
  • Cable – Connects to the cable wall outlet.

MAC Address

MAC label

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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.


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

Modem Light Status Problem
Power Solid Green None.
Off No power. Verify power supply connections and electrical outlet. Also make sure the outlet is not connected to a switch.
USB Solid Green None. USB connection to the computer found.
Off No USB found. Verify USB cable connections, the TCP/IP settings and the USB cable. You might need to reinstall the USB drivers.
Enet Solid Green None. Ethernet connection to computer found.
Off No Ethernet found. Verify Ethernet cable connections, the TCP/IP settings and the NIC. You might need to reinstall the NIC drivers.
Send Flashing Green None. Transferring data.
Recv Flashing Green

Sync and Ready LED Off. Searching for cable connection.

Sync and Ready LED On. Transmitting data.

Verify all cable connections and try resetting the modem.

Off No cable connection. Verify all cable connections and try resetting the modem.
Sync Solid Green None
Ready Solid Green None

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