|START> Control Panel> Network Connections|
Rightclick on the LAN and select Properties.
In the panel of installed items scroll down to Internet Protocol (TCP/IP) and click on it.
Make sure there is a tick against the item then select the Properties button below the list. Make sure the radio buttons for Obtain IP address Automatically, and Obtain DNS address Automatically are selected. Save & exit. Reboot the PC.
Please advise if this is helpful.
Goin' Fishin' (Some day)