Modem
Light
Status Problem
Power
Off No power – Verify all cable connections and try resetting the modem.
Solid Green None
Red
The cable modem is too warm and might overheat. Fix:
1. Disconnect the power adapter.
2. Wait a couple of minutes to let the cable modem cool down.
3. Make sure that the cable modem is placed in a vertical position.
4. Make sure that the cable modem is placed in a location with good ventilation.
5. Reconnect the power adapter.
Downstream
Off
Downstream channel inactive – Verify all cable connections and try resetting the
modem.
Solid Amber None – connection from the computer to the Internet established on one channel.
Blinking Amber
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 more than one
channels.
Upstream
Off
Upstream channel inactive – Verify all cable connections and try resetting the
modem.
Blinking Amber
Scanning for upstream channel – Verify all cable connections and try resetting the
modem.
Solid Amber None – connection from the Internet to the computer established on one channel.
Solid Green
None – connection from the Internet to the computer established on more than one
channels.
Internet Off Modem Offline – Verify all cable connections and try resetting the modem.
Solid Green None – Modem operational
Blinking Green None – Modem receiving DHCP information
Ethernet
Off
A device is not connected to the Ethernet port on the back. – Connect a device to
the Ethernet port on the back.
Solid Green None – A device is connected to the Ethernet port at 1000 Mbps.
Solid Amber None – A device is connected to the Ethernet port at 10/100 Mbps.
Blinking Green or
Amber
None – Ethernet port is processing traffic
Manufacturer Resources
Data Sheet (PDF)
Quick Start Guide (PDF)
User Manual (PDF)
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