Cable Modem Troubleshooting: RCA DCM305

Light patterns, images, manuals and more helpful info for the RCA DCM305 cable modem –

Manufacturer: RCA

Model: DCM305

Modem Light Indicators
Power/Internet **This light may be marked Power or Internet**
Off – 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.

Indicates activity over cable network. The light is off during times of no activity and flashing when activity exists.

MessageFlashes 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.

This modem has been known to go into stand-by mode automatically when acquired for the first time. Please be aware of this as a commonly overlooked problem for new installations.

Installation and User Manual
Manufacturer Product Website

If this article helped you, I'd be grateful if you could share it on your preferred social network - it helps me a lot. If you're feeling particularly generous, you could buy me a coffee and I'd be super grateful :)

buy a coffee for

Home » Cable Modems » Cable Modem Troubleshooting: RCA DCM305

Leave a Comment

Your email address will not be published.