TECHNICAL SUPPORT
Cable Modem: RCA DCM305 Troubleshooting
► Summary
Troubleshooting
Manufacture Resources
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► Troubleshoot Modem Lights
► Troubleshooting Diagram:
Modem Light
Status
Problem
Solution
Solid
None
N/A
Green
Power
Verify power supply connections and electrical
Off
No Power
outlet. Also make sure the outlet is not
connected to a switch.
Solid
Successfully found the computer through an
None
Green
Ethernet connection.
PC Link
Verify Ethernet cable connections, the TCP/IP
Off
No Ethernet found
settings and the NIC. You might need to
reinstall the NIC drivers.
Slow
Verify all cable connections and try resetting
Registering
Flashing
the Modem.
If this is a new Modem or a replacement
Fast
Modem, the customer must contact Suddenlink
Registering
Flashing
with the MAC address. If there are several MAC
Cable
Modem
addresses on the Modem, please use the "HFC"
or "RF" MAC address.
No cable
Verify coaxial cable connection and try
connection is
Off
resetting the Modem.
detected or in
standby mode.
Activity
Data is being transferred between the modem
Blinking
None
and the head-end.
IGNORE, this LED is
Email
Yellow
not currently used
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