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I have a Sony VAIO VPCEH26EN laptop that I have installed Ubuntu 12.04 on. This is a dual boot system. The problem is that it is not detecting the wired LAN; it keeps showing as disconnected. Bluetooth and WiFi work fine but the wired network is not being detected.

Please be clear with your answers as I am new to Ubuntu.

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Is it detecting the Adaptor or just not the Network it is plugged into? – njallam Aug 23 '12 at 13:03
Also, try opening System Settings (By default it is in the dock) and check Additional Drivers for any drivers you may need to install. – njallam Aug 23 '12 at 13:12

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