Hi there, I have a Dell Vostro 3668 PC. But the Dell website automatically detects my pc by another version(3667). Follow the image below.

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By the way, I am in a problem with my pc. My PC has a Lan port & I connect a Lan cable to this. The Lan port's led also blinking which means the data has been transmitted. But the pc can't connect to the LAN network. Follow the image below.

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And I can't find the network connection to the system tray & also can't find the adapter to the device manager. Follow the image below.

I have tried so many times by uninstalling and installing the device driver. But I fail to solve it. Please help me with this issue.