Cable Modem Troubleshooting: Motorola SB5100

Light patterns, images, manuals and more helpful info for the Motorola SB5100 cable modem –

Manufacturer: MotorolaModel: SB5100
Modem Light Indicators

Flashing – Startup diagnostics in progress.
On – Cable modem is powered on.


Flashing – Scanning for a downstream channel.

On – Downstream channel is connected.

SendFlashing – Scanning for an upstream channel.
On – Upstream channel is connected.

Flashing – Scanning for a network connection.
On – Startup process complete. Modem aqcuired.


Flashing or On – Transmitting or receiving data.


This light turns on when the standby button is pressed and standby
mode is activated. If this light is on, all other lights will be off.

Notes and Useful Information:

Installation and User Manual

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: Motorola SB5100

Leave a Comment

Your email address will not be published.