Cable Modem Troubleshooting: RCA DCM225/226

Light patterns, images, manuals and more helpful info for the RCA DCM225 / 226 cable modem –

Manufacturer: RCA

Model: DCM225/226

Modem Light Indicators
PowerOff – Modem is in stand-by mode or not receiving power.
On – Modem power is activated and receiving power.
PC LinkOff – No ethernet carrier is present or the modem is in stand-by mode.
On – Ethernet carrier is present with no send/receive activity.
Flashing – Indicates Send/receive activity.
CableOff – No cable connection detected or modem is in stand-by mode.
Flashing – Cable connection is detected. Modem is not yet acquired.
On – Modem is acquired. Data can be sent.
Activity Indicates activity over cable network. The light is off during times of no activity and flashing when activity exists.


Flashes when you have email (if offered by cable provider).
Notes and Useful Information

When this modem is in stand-by mode, the Internet/Power light will be off. All other lights will operate normally. While in stand-by mode, you may still be able to release/renew an IP address without any problems. Please keep this in mind when troubleshooting PC connectivity issues.

Manufacturer Product Website

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0 thoughts on “Cable Modem Troubleshooting: RCA DCM225/226”

  1. do I need to enable the bridge mode so that the modem will work with the Belkin router? Basically, the router won’t work bc of the modem so what do I do?

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