You now own a new Motorola SURFboard SB5100 cable modem, which is wonderful. It offers quick access to online resources like the Internet and other services. Compared to standard dial-up or ISDN modems, this cable modem transmits and receives data faster. You can launch your browser and browse!

One or more PCs in your house or business connection to the Internet using your high-speed, upgradeable cable modem instead of local slow modems, thereby providing you with the high speed to transfer data supporting upto 32 users. Comcast facility is also available and provides the users with a multi-language guide. Thus, this article provides the solution to your problem by helping you to get a full user guide on how to use it efficiently when you receive it.

Give this article a read to learn about a Motorola SURFboard, how to set up the Motorola SURFboard SB5100, and then enjoy the high-speed Internet after setting it up.

What Is Motorola SURFboard SB5100?

The next-generation Motorola SURFboard SB5100 Cable Modem integrates the DOCSIS 2.0 Advanced Time Division Multiple Access (A-TDMA), Synchronous Code Division Multiple Access (S-CDMA) technologies to give up to three times the greater upstream capacity than DOCSIS 1.0/1.1 systems. Operators can install the Motorola SURFboard SB5100 right away without experiencing service interruptions because it is interoperable and backward compatible with DOCSIS 1.0 and 1.1.


The Motorola SURFboard SB5100 is adaptable and enables operators to simultaneously utilize their present infrastructure investments and provide additional affordable services. End-user security by the Motorola SURFboard SB5100’s top-mounted standby button, which is convenient for operators and end users. Without cutting off the cable modem’s connection to the RF network. It immediately isolates the USB and Ethernet connections to the PC.

The front panel status indicator LEDs and integrated HTML diagnostics page on the SB5100 also make troubleshooting easier. The Motorola SURFboard SB5100 is reasonably priced and comes with a number of the useful features present in earlier SURFboard models, including USB and Ethernet connectivity, software updates are accessible over the network, field-proven quality and reliability, advanced RF design, and a high-performance processor.

Key Features

The features of the Motorola SURFboard SB5100 are:


  • Consists of integrated DOCSIS 2.0 A-TDMA and S-CDMA technology
  • Has 10/100 Base-T Ethernet and USB connectivity
  • It supports up to 32 users 
  • Bridges ethernet and USB connections by allowing LAN traffic between a USB device and Ethernet LAN
  • Follows European Code of Conduct compliance, hence saving the environment
  • Motorola SURFboard SB5100 Comcast is also available
  • Remote management via SNMP
  • Upgrades software over the network
  • Mounted with a standby button, which enhances network security to end-user
  • Has easy troubleshooting
  • Provides multi-language user guide of the modem

See Also: Motorola Modem Login I A Complete Guide For You

Configure A Motorola SURFboard SB5100 Surfboard Router

Then set up the modem for use with your PC. Follow the steps:surfboard set up

  1. Ensure your PC is turned on and your Motorola SURFboard SB5100 modem is unplugged.
  2. The threaded peg on the Surfboard’s back can secure coaxial cables and connect the rear end to a cable outlet.modem connection
  3. Put the AC adapter’s other end into the back of the Surfboard and place one end into a wall outlet to turn on the modem. Watch for the front panel’s lights to stop flashing and turn green.
  4. The Ethernet cable must connect your modem and your computer’s Ethernet port.motorola surfboard configuration
  5. Select “Control Panel” from the Start menu, followed by “Network and Sharing Center.”control pannel
  6. Click the “Advanced Adapter Configuration” link at the left window pane, which opens a new window on your system.change adapter settings
  7. Right-click on the Ethernet adapter and select “Properties.” Dialogue-box pops-up. Select “Properties” after selecting the “TCP/IPv4” dialog box entry.ethernet
  8. Click the “Obtain an IP Address Automatically” button.
  9. To exit, click OK. Your modem is now completely set up.

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Front View Of Motorola SB5100 Internet Modem

Find out what each light pattern on the front of the Motorola SURFboard SB5100 Internet modem means.

surfboard modem front view


  • Power: The device gets power when the green light is solid. When the lights are flashing means that the startup diagnostics are running.
  • Receive: The downstream channel is connected when the green light is solid. The modem is looking for a downstream connection when it flashes.
  • Send Connected upstream channel when there is a solid green light. The modem is looking for an upstream connection if its light is flashing.
  • Online: The modem is online if the green light is solid. The modem is checking for network access when its light flashes.
  • PC/Activity: This signal shows that the Motorola SURFboard SB5100 modem has identified a physical connection to another device when the light is yellow. Data is being transferred (to or fro) by the modem when it is flashing.
  • Standby: Works normally when the light is off. Standby mode has been enabled once the “Standby” button (found at the top of the modem) has been pressed when the green light is visible. To turn off Standby mode, press the Standby button. Access to the Internet is denied. All the lights will be off in standby mode.

See Also: Cisco DPC2203 Modem – Complete Review Guide

Motorola SB5100 Internet Modem – Rear View

The Motorola SURFboard SB5100 Internet modem’s additional specifications and connection features are listed below.

motorola surfboard modem rear view


  • Ethernet: connects the Motorola surfboard sb5100 modem to a computer or other device with Ethernet support (router, Ethernet hub, etc.)
  • USB: connects the modem to computers with USB ports (not supported)
  • Cable: Coaxial cable attaches the modem to the cable outlet.
  • +12VDC: ties the modem to the power source.

See Also: How To Connect To The Ethernet? The Wired Way!


What do you mean by high-speed cable Internet access?

Cable Internet access uses cable television connections in place of phone lines to access the Internet. It is incredibly quick, reasonably priced, and doesn't occupy phone lines with incoming or outgoing calls or faxes.

Will I require more than one SURFboard cable modem if I have more than one computer?

No, if your computers connect, they won't. You can connect up to 32 PCs to the Internet using a single cable modem thanks to the SURFboard cable modem's compatibility with current Internet connection-sharing technologies.

How fast is a Motorola SURFboard SB5100 modem?

Internet connection is 100 times faster with a Motorolla Surfboard SB5100 modem than a standard phone modem. Over 1,000 Kbps in speeds are possible. Download speeds by network factors, including traffic volume and the Motorola SURFboard SB5100 speed of the websites you visit, may vary.

Will I be able to watch TV while using this modem?

Yes, as you transmit and receive data on the Internet, your cable TV line can transport the TV signal.

What kind of technical help is accessible if I need it?

Contact your cable service provider if you have inquiries about your Internet service, connection, or cable modem.


With the release of the Motorola SURFboard SB5100 Cable Modem, Motorola has further proven its technological prowess and overall dedication to the cable business. The SB5100 is a next-generation cable modem prepared to benefit from today’s cutting-edge technology because it is equipped to meet DOCSIS 2.0 standards. It enables cost-effective incremental system upgrades and is backward compatible and interoperable with current DOCSIS 1.0 and 1.1 systems. It is also user-friendly, handy, adaptable, and easy to install and assures improved service offers, superb performance, seamless functionality, and exceptional value.

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