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The problem is only at one point of the wired network. If the computer is connected to a different point it works.
Running ipconfig shows it has a different IP address and no DNS data at this socket.
But if the computer is moved to a different socket the everything goes back to normal.
Running flushdns & release has not worked.
Running ipconfig at the bad socket shows, "Media disconnected", "connection-specific DNS"
It runs fine from some other sockets but not all. The way the sockets are distributed it is unlikely it is a wiring problem. It's confusing. – user44783 – 2010-08-02T14:27:50.247