Windows Vista network icon in system tray: Connection Status: Unknown

I'm running Windows Visat Ultimate 64-bit.  The network Icon in the system tray has a red 'x' it, but I still network connectivity and Internet access.  I'd like to fix the problem because it's a real pain.

When I hover the mouse over the icon the balloon states "Connection status: Unknown The dependency service or group failed to start"

I've tried a few suggestions that were recommended online but I've had no success.  This appears to be a problem many people have run into, but there appears to be no clear solution.

Any help you can give will be greatly appreciated.  Thank you.
drapeaurAsked:
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DatedmanCommented:
If you open the network and sharing center (in control panel) then click on manage network connections four from the top on left, how many network connections do you see?  Does one show connected and another show connection status unknown?  Could be a wireless not connected and a wired connected?
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drapeaurAuthor Commented:
I see two network connections:
1) Local Area Connection - Status is "Enabled"
2) Local Area Connection 2 - Status is "Disabled"
#2 shows as "Disabled" because I manual disabled the second network port.
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DatedmanCommented:
So the icon with a red x is Local Area Connection?  Hmm haven't seen anything like that before.
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drapeaurAuthor Commented:
There are many reported incidents of this problem if you do a Google search.  Click on this below and you'll see.  I haven't had much luck correcting it though.  Many people end up reloading their OS to resolve.  Some people think it was caused by a Windows Update that corrupted the TCP/IP stack.
 http://www.google.com/search?hl=en&q=connection+status+unknown+the+dependency+service+or+group+failed+to+start+vista&aq=1&oq=Connection+status%3A+Unknown+The+dependency+service+or+group+failed+to+start&aqi=g2
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DatedmanCommented:
Try sfc /scannow
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DatedmanCommented:
btw what service pack are you using?
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drapeaurAuthor Commented:
I ran sfc /scannow.  It found some corrupted files, but could not restore them.
I am running Vista SP1.
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DatedmanCommented:
I recommend you upgrade to SP2.  Could help. :)  btw i am running vista x64 ultimate myself, SP2 seems to have reduced RAM overhead a bit.
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Keeran NetworksCommented:
I have the same issue on a laptop, and SP2 does not install because of this... Any updates would be of great aid.

Thanks,
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DatedmanCommented:
Try sfc /scannow in safe mode?
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Keeran NetworksCommented:
Post from technet by Louis Vella ( who I now love dearly haha ):

I had the same issue and as it turns out, the issue is caused by a corruption in the TCP/IP Stack

To fix, you will need to run a command prompt as administrator

Start > All Programs > Accessories > Command Prompt (Right-Click and Run as Administrator)

At the command Prompt type : netsh winsock reset

Ignore all errors, restart and voila'
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DatedmanCommented:
That might do it.  There's someone here who recommends that fix for any and all networking problems so I may have developed an aversion to it. :)
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drapeaurAuthor Commented:
I tried to update to SP2 but it would not install.
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DatedmanCommented:
What happened?  Did you download SP2 and then install or do it direct from Windows Update?
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drapeaurAuthor Commented:
I downloaded SP2.  I'm convinced something is corrupted and I'm going to have to reinstall from scratch to fix this.
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DatedmanCommented:
Did you run sfc /scannow?

If you have done this, then try running the built-in program VERIFIER and restart the machine, see if it comes up with errors.  Just turn it on with the defaults.  Turn off after a while tho because there's some overhead involved.  (It is a driver verifier.)
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drapeaurAuthor Commented:
Yes, I've tried everything.  I'm going to just reinstall when I have time.  Thank you all for your help.
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camohCommented:
Just in case someone else finds this question, but isn't satisfied with the above 'solution' . . . there are other fixes here on EE.
I suppose reinstalling everything would also have fixed my problem, but instead I followed the instructions over here and it fixed my T61, Vista Ultimate, SP2's problems. http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Windows/Windows_7/Q_26858226.html?sfQueryTermInfo=1+10+1073741288+30#a35018423
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