Arris / Surfboard SB6121
- June 7, 2024
- Arris
Table of Contents
Details
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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?DOCSIS 3.0 modems with 4×4 channel bonding have a maximum speed of 50 Mbps on the Cox network.
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Highest Service Level
Essential
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Front View
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- 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.
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Back View
| | 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
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MAC Address
| | 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.
Troubleshooting
The lights indicate the current status of your modem. To troubleshoot any connection problems, use the table below.
| Modem Light | Status | Problem |
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POWER
| Off| No power. Verify all cable connections and try resetting the modem.
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.
Manufacturer Resources
Refer to the ARRIS_Motorola_SB6121-User-Guide [PDF]
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>