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I've seen this several times (mainly in VMs): although the machine is connected to the local network the OS (at the moment I am talking about Win 8.1 as guest in Virtualbox) notifies me:

Network: No internet access

I just want to know how Windows draws that conclusion.

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marked as duplicate by Ƭᴇcʜιᴇ007, Tog, Kevin Panko, Raystafarian, Garrett Mar 20 at 6:12

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When it can't talk to a specific Microsoft site. –  Daniel R Hicks Mar 13 at 21:07

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up vote 5 down vote accepted

This article of SuperUser blog talks to the details how Windows does it.

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I was just posting that.... :) –  Mike Naylor Mar 13 at 21:08

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