adapter is looping trying to connect (Win 7 system

I just installed windows 7 on a brand new Dell Vostro desktop and the network adaptor is connecting and disconnecting automatically on a sbs 2008 network with a netgear prosafe 24 port gigabit switch.  Any ideas?  I've reinstalled the adapter and tried using known good cables but no luck.  When testing this unit at home everything works fine with solid connection to the internet.  
Juan LirnaoAsked:
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Juan LirnaoConnect With a Mentor Author Commented:
Gentleman thank you for the assistance and accept my apology for the delay in my response.  Unfortunately I had a death in the family and that demanded my full attention for several weeks. The issue was resolved by shutting the network down and all related equipment.  Once all systems were back online the issue resolved itself.   Further research revealed that the behavior was caused by an ip address conflict.  All systems on the network now have static IP addresses to prevent future issues.

Thank you for your assistance.
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Ernie BeekExpertCommented:
Did you try setting the speed and duplex manually?
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louisreevesConnect With a Mentor Commented:
Make sure the network adapter settings on the laptop match 1500 MTU, etc.... set the connection to AUTO. If the adapter is a broadcom- install the latest BACS software and driver for the client. THe software has tests, and settigns that will help you diagnose the issue. Alos call Dell support. They are the most commited group of people and should be able to assist. I did not mention the server as I assume you are not having problems there. However, you may also benefit from installing the latest broadcom driver package from support.dell.com (drivers and downloads)

Cheers
L
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Juan LirnaoAuthor Commented:
@ erniebeek, no.  This is the first time I've seen this behavior and we have 10 other computers running error free.

@ louisreeves, I will try these steps and erniebeeks recommendation tomorrow.  Thank you for taking the time to assist.

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Ernie BeekExpertCommented:
Without feedback from the author it's difficult to say what was the resolution. I'd say: delete.
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Juan LirnaoAuthor Commented:
The solution was to start with basic trouleshooting steps by shutting down the network and making sure no ip conflicts happeniing.
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