Arris / Surfboard SB6121 Cable Modem Manual

Details


Modem Information DOCSIS 3.0 Cable Modem 4×4 channel bonding with speeds of up to 50 Mbps on a wired connection Cox recommends a DOCSIS 3.1 modem or gateway What does this mean?	Highest Service Level Essential

DOCSIS 3.0 Cable Modem

4×4 channel bonding with speeds of up to 50 Mbps on a wired connection

Cox recommends a DOCSIS 3.1 modem or gateway

What does this mean?

Essential


Front View Click to enlarge.		The highest service level is based on wired connectivity speeds. After the cable modem is successfully registered on the network, the POWER, RECEIVE, SEND, and ONLINE indicators illuminate continuously to indicate that the cable modem is online and fully operational.

Back View Click to enlarge.		The ARRIS / Surfboard SB6121 has the following ports available on the back of the modem. ETHERNET – Connects to the Ethernet port on your computer CABLE – Connects to the cable wall outlet POWER – Connects the cable modem to the power adapter

MAC Address Click to enlarge.		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.

image of Modem lights

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

Modem Light	Status	Problem
POWER	Off	No power. Verify all cable connections and try resetting the modem.
POWER	Solid Green	None.
RECEIVE	Flashing	Scanning for downstream channel. Verify all cable connections and try resetting the modem.
	Solid Green	None – connection from the computer to the Internet established on one channel.
	Solid Blue	None – operating on more than one channel (downstream bond mode).
SEND	Off	Upstream channel inactive. Verify all cable connections and try resetting the modem.
	Flashing	Scanning for upstream channel. Verify all cable connections and try resetting the modem.
	Solid Green	None – connection from the Internet to the computer established on one channel.
	Solid Blue	None – operating on more than one channel (upstream bond mode).
ONLINE	Off	No connection. Verify all cable connections and try resetting the modem.
	Solid Green	None. Operational.
	Flashing	None. Scanning for configuration parameters.
LINK	Off	No devices connected. Verify all cable connections and try resetting the modem.
	Flashing	None. A single device connected to the Ethernet port and data is being transferred between the computer and the cable modem.
	Solid Blue	None – connected to 1000 Mbps.
	Solid Amber	None – connected at 10 or 100 Mbps.