Hello,I have a window xp and it says a Realtek Ethernet Controller is not detected.What do I do?
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  1. From Start menu, go into Control Panel - System - Device Manager - Network Adapters... your Realtek controller should be listed (may have an exclaimation mark next to it) - right click on the Realtek controller - select update drivers.
    See if that helps

    Go to the support link, put in your service tag number, download the drivers for the network card there.
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