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Network and Sharing Center - No Internet?!!

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#1 GeekyGreek


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Posted 21 August 2013 - 09:40 AM

I'm experiencing this problem on multiple Win 7 Home Premium, Win 7 Pro, and Server 2008 R2 machines.  I've got a TW modem hooked to a D-Link DIR-655, then a gig switch, then the machines.  Network and Sharing Center and the Network Map shows the machine connected to the switch then my router but the router to the internet has no access.  The network access will have an exclamation point.  Now most of the time, I still do have internet access because I can open a browser and go places.  Very rarely, I really don't have access.  The Network.jpg shows the configuration.  I just got that by remoting to the server so I'm pretty confident that it does have a good internet connection!  Can anyone tell me exactly what Windows is doing to determine that I have access to the internet?  Does it ping? Does it look for a web page?  Does it do a DNS lookup?  Does it.....  


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#2 Comptech72


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Posted 17 September 2014 - 09:21 AM

Have you tried connecting a computer dir to the modem (bypass the router ) and make sure you are able to connect that way? 

#3 Wand3r3r


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Posted 17 September 2014 - 01:35 PM

Here is how Windows 7 knows about your network.





It sounds like you are experiencing low bandwidth which can seem like you are not connected when you are.  I would suggest a speedtest.net broadband test when you see the X to the internet [you said you could still get thru to the internet].


Depending on the results you may need to have a heart to heart discussion with your ISP

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