Cable Modem Troubleshooting: D-Link DCM-100

Light patterns, images, manuals and more helpful info for the D-Link DCM-100 cable modem –

Manufacturer: DLINK Model: DCM-100
Modem Light Indicators

Solid Red – Modem is receiving power.
Off – Modem is not receiving power.


Solid Green – Indicates a connection to a functional ethernet port.
Off – Indicates no valid connection to an ethernet port.

AcctFlashes in sync with activity to/from the cable network.

Solid Green – Modem is acquired.
Quick Flashing Green – Searching for downstream signal.
Slow Flashing Green – Waiting for authentication.

Notes and Useful Information:

Installation and User Manual
Manufacturer Product Website

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