Linksys CM3008 High Speed DOCSIS 3.0 Cable Modem Router user manual
- June 7, 2024
- Cox
Table of Contents
Linksys CM3008 High Speed DOCSIS 3.0 Cable Modem Router
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Modem Information
DOCSIS 3.0 Cable Modem
8×4 channels with speeds of up to 150 Mbps on a wired connection
Cox recommends a DOCSIS 3.0 16×4 or higher modem
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Highest Service Level
Preferred 150
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Front View
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Back View
| | The modem includes the following connection ports:
- POWER – Connects to the power adapter
- ETHERNET – Connects devices to the 10/100/1000 RJ45 Ethernet port
- CABLE – Connects to a coaxial cable
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MAC Address
| | The information below is usually found on a sticker located on the bottom of the modem.
- The S/N is the serial number of the Linksys CM3008 modem.
- The CM MAC is the MAC address of the Linksys CM3008 modem.
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
| On| The modem is powered on.
Off| No power – Verify power supply connections and electrical outlet. Ensure
the outlet is not connected to a switch. Press the Power ON/OFF button on
the back of the modem to ensure it is turned on.
Receive
| Solid Blue| Multiple downstream channels are in use.
Solid Green| One downstream channel is in use.
Blinking| Scanning for downstream channels. – Verify all cable connections and
try resetting the modem.
Send
| Solid Blue| Multiple upstream channels are in use.
Solid Green| One downstream channel is in use.
Blinking Green| Scanning for an upstream channel. – Verify all cable
connections and try resetting the modem.
Off| No upstream channels are in use. – Verify all cable connections and try
resetting the modem.
Status
| On| The modem is online.
Blinking| The modem is registering a connection.
Off| The modem is offline. – Verify all cable connections and try resetting
the modem.
Ethernet
| On| A device is connected to the Ethernet port.
Blinking| Data is being transferred over the Ethernet connection.
Off| No device is connected or the device is disabled. – Verify all cable
connections and try resetting the modem.
Reset Button
| N/A| Press and hold for five seconds to restore settings to factory defaults and reboot the modem. login/Reset instructions
Manufacturer Resources
User Guide [PDF].
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>