Windows 7 LAN connection multiple connections

Everytime I start up my computer, my LAN connection connects to two networks.  One is the right network, our local network, and the other is labeled as "Unidentified network".  When this happens, I cannot connect to any website or ping anything; basically, the second connection prevents the network from working.  See attached screenshot of the network center & ping results when the 2 connections are active.  I can solve this problem by disabling and re-enabling the network connection.  When I do this, the unidentified network goes away leaving on the real local network, and then everything works correctly.  See attached screenshot right after the connection is re-enabled and reconnects to the network (correctly).

We are using Windows 7, this is a relatively fresh install (a few weeks), and I do have the most updated driver for my network card, which is a generic Realtek PCI network card anyways.  I would like to just completely disable this unidentified network completely, it is a public network which I would never use, but I have no idea where it's coming from or what is causing it to auto-connect.

My desktop, where this problem is occurring, is connected to a switch that connects to the router that connects to the cable modem and there to the internet.  There is a wireless laptop that connects to the router and never has a problem connecting.  Every computer is running Windows 7.  See attached network map of a working connection (when there is only the one network connection).

Thanks for any help or suggestions you can offer.
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TheBDPSr. Sys EngineerCommented:
Do you have multiple NIC's on this MOBO?
dageyraAuthor Commented:
No, there is only one network card.  There may be two but the plate on the back of the workstation only has one available.
Have you got itunes installed?

If so try disabling the bonjour service.
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Does this PC have a wireless card installed? Does another computer have internet sharing enabled?
dageyraAuthor Commented:
No, iTunes is not installed and there is no wireless card.  There is only a laptop on the network, this happens whether that laptop is connected to the network or not.  I don't know anything about internet sharing.  We have wireless and broadband connections, we have no need for internet sharing amongst individual machines.
Try resetting your TCP/IP stack.

Go to Start > All Programs > Accessories > Command Prompt ** Right Click ** and run as administrator.

Then enter this command:

netsh int ip reset c:\resetlog.log

Restart your computer and see if the problem persists

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