I have been running Windows 7 64 bit enterprise on my Dell Optiplex 755 for
two months now and it has been rock solid stable. However earlier this week
I came in the office and attempted log in and the system was frozen. I have
discovered that if I boot the system without the network card plugged in -
it works just fine. I can log in and work normally (without network
connectivity). But as soon as I plug the network card in the system
freezes. I have installed two additional network cards (one intel and one
realtek) but had the same results. As soon as I plug the network cable in
either card the system freezes. I did not find anything in the event logs
that gave me any clues as to why this was happening. I can log into safe
mode with networking and the system does not freeze. As consistent as this
problem is I thought this might be a known issue but I have not found
anything online dealing with my specific issue. Nothing new installed
lately that I can find that would have caused this. Not much running on
this machine, Office 2007 and VMware workstation 7 - maybe a couple of other
smaller footprint items. It is a domain joined systems connected to a
Active Directory 2003 edition. Any help is much appreciated.
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