Take a look here: ( Start > Control Panel )
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[TD=class: listNumber, align: right]1.
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[TD]Open Network Connections
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[TD=class: listNumber, align: right]2.
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[TD]Right-click the network connection that you want to configure, and then click Properties. ( in your case it will be the LAN )
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[TD=class: listNumber, align: right]3.
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[TD]On the General tab (for a local area connection) or the Networking tab (all other connections), click the Internet Protocol (TCP/IP) component, and then click Properties.
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[TD=class: listNumber, align: right]4.
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[TD]Check that ...... Obtain an IP address automatically, and Obtain DNS Servers automatically are both checked.
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