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How to activate or deactivate the network adapter (Ethernet port) (Windows 8.1)

The network card/adapter (or NIC) is responsible for connecting the computer to the Internet, via an Ethernet cable. A disabled network card/adapter is a common reason why people can't browse the Internet, if they are connected via a wired connection, i.e. Ethernet cable.

The tutorials below will show you how to enable and disable the network card/adapter safely and without changing any other important settings, on computers running on:

  • Windows (Dell, Asus, Acer, Lenovo, HP, MSI, and others);
  • macOS (Mac, MacBook, iMac);
  • Ubuntu (Dell, Asus, Acer, Lenovo, HP, MSI, and others).
Select specifications which apply:
  1. Via Network Connections

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