Question about HP PAVILION A6230N DESKTOP PC

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Ethernet Card I can access the Internet with a Motorola SB5120 SURFboard modem via a USB cable, but when I try hooking my PC up to the modem via an Ethernet Cable, nothing works. All of the lights on the modem are working, even the PC Activity light. I would like to hook the modem up to a router, but I have to be able to hook the router and modem up via an Ethernet cable. Any ideas what I should do?

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Do a ipconfig at the command prompt and see if you are being assigned a ip from the modem. If not try rebooting the modem with the ethernet connected to modem and computer. then do ipconfig again to see if not getting internet ip, your card or modem eternet is bad. put in a new one and try again.

Posted on Jun 01, 2008


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Related Questions:

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How to open settings of motorola SURFboard SB5120 modem?

Support for the Motorola SB5120, discontinued product, see next site:

Connecting the device, see the "Quick Reference Guide":

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:

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.

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Motorola SB 5120. Can I connect the USB cable to

Certainly not. You just have to choose between the two.

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Motorola SB 5120. Can you run the USB cable to a

Certainly you cannot. You just have to choose what connection to use. USB or Ethernet port.

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No internet connection by using the ethernet cable

Unplug the power to the modem and the USB cable. Plug in Ethernet cable in computer and plug in the modem. Wait for WAN side of the modem to connect and stabilize. If your PC is already on, you should see the network connection appear in the task bar (if it's configured to show up). Open a command prompt. Type 'ping' and press Enter. You should get 4 ping responses from the modem which indicates that you LAN connection to the modem is functional.

Let me know if this doesn't work and I'll guide you through other methods to get it working.

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are you sure your hooking the comcast modem in the right place?

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Motorola surfboard modem

try connecting it though the usb and installing the usb driver came on a cd with the modem.
Or connect to the ethernet and install its driver from the motherboard cd

Aug 29, 2008 | Arris SB5100 SURFboard DOCSIS 2.0 Cable...

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Need to hook up Belkin G wireless router to Motorola SB5120

Plug your cable line into your modem, make sure it's tight, but don't use a tool. Next plug the ethernet line from the modem to your PC ethernet port. Then plug in your power to the modem. Allow your modem to sync. Don't use the USB line at all. Do not even hook it up unless your computer doesn't have a working ethernet line. Don't run the disk either, it will only install the modem driver that is only used if you use USB.

If you have issues connecting after that, you may have to go into your ethernet adapter settings and make sure that it is using DHCP. DSL usually uses a different setting (PPP I think) and you will not be able to connect.

By the way, excellent choice in modems.

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1 Answer

Change from usb to ethernet

the ethernet port will already be active

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