SURFboard
®
SB6121
DOCSIS
®
3.0 Cable Modem
Quick Startup Guide
Please visit www.motorola.com/us/support for FAQs and additional product documentation.
BEFORE RETURNING THIS PRODUCT TO THE STORE for any reason, please call Motorola Broadband Technical Support:
1-877-466-8646
IMPORTANT
1. Power ON your computer. Check that the Receive, Send, and
Online LEDs on your modem turn ON (not flashing). See next
page for more LED information.
Note: If all three LEDs did not turn ON, contact your service
provider.
2. Open a web browser of your choice, such as Internet Explorer,
Firefox, or Google Chrome.
3. Type any valid URL (for example, www.motorola.com) in the
address bar to test your network connection.
- If the web page opens, your modem was set up properly.
- If the web page does not open, you may have to contact your
current service provider to set up your Internet service or
activate your modem.
Please contact your service provider, if you do not already have
a cable service installed or you do not currently subscribe to a
high-speed cable service.
You may need to provide your modem’s MAC address and
serial number (see next page for details).
Before starting, make sure your cable service is up and running,
and that the coaxial cable is already connected to your home’s
cable outlet. If not, contact your service provider.
1 Connect the other end of the coaxial cable to the Cable
connector on the rear panel of your modem.
2 Plug in the power cord to an electrical outlet and to the Power
port on the rear panel of your modem. This will automatically
power ON your modem.
3 Connect the Ethernet cable to the Ethernet port on your
computer (or other device) and to the Ethernet port on the rear
panel of your modem.
Connecting Your Modem
(see connection diagram)
Items Included in the Box
• SB6121 Cable Modem
• Power Supply
• Ethernet Cable
• Software License & Warranty Card
• Quick Startup Guide
Starting Your Modem
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