My computer, with Windows 7, is not recognizing my Motorola Surfboard SB6121 and says there is a problem with the driver. I cannot locate the driver anywhere online. I have another computer connected to the modem and it is working just fine. Do you know the name of the driver file for this modem, so I can move it from the connected computer to the non-working one?

SOURCE: Motorola SURFboard SBG900 loss ethernet connection

Please remove the program of your router and re install it again and it will work..
Good luck
Johnson

SOURCE: motorola surfboard sb5120 usb driver problem

I have lost the driver CD of motorola cable modem SB5100. So Iplease help me

SOURCE: Motorola SB4200 IP address

192.168.100.10

YourZEN

• 820 Answers
• Posted on Oct 31, 2009

SOURCE: how to open settings of motorola SURFboard SB5120

Support for the Motorola SB5120, discontinued product, see next site:
http://broadband.motorola.com/consumers/support/default.asp?supportSection=DiscontinuedProducts

Connecting the device, see the "Quick Reference Guide":
http://broadband.motorola.com/consumers/products/SB5120/downloads/SB5120_Quick_Ref_Guide.pdf

For installing the modem the easiest way is to run the provided cdrom.
When not available perform the settings as showed in the guides.

Motorola 5100 series user guide:
http://broadband.motorola.com/consumers/products/SB5120/downloads/SB5120_User_Guide.pdf

See page 7 "Before You Begin" for the requirements and selecting either USB or Ethernet connection.

Page 22 gives the overview for the pages how to configure ethernet settings.

SOURCE: internet won't recognize our motorola surfboard

You need to register your modem with your cable provider. They will need the MAC address which is on the side or Bottom of the unit.