How to Turn Off the Internet With iMac Ethernet


You might want to turn off the Ethernet Internet connection on your iMac temporarily, such as when you want to avoid distractions while working on a project for school or work. You don't have to unplug the Ethernet cable from the Ethernet port on the back of your iMac, a desktop computer made by Apple. Instead, you can change the system settings to turn off the Internet until you want to go back online.

  • Click the "Apple" logo from the Finder menu on your iMac.

  • Click "System Preferences."

  • Click "Network."

  • Click "Ethernet" in the left side of the "Network" panel.

  • Write down the current option that is set on the "Configure Ipv4" drop-down menu so you can use it later when you turn the Internet connection back on. For example, the option could be set to "Using DHCP" or "Using DHCP with Manual Address" (write down the number appearing in the "IP Address" field in case you need to enter it again).

  • Click the "Configure Ipv4" drop-down menu, then click "Off."

  • Click the "Apply" button at the bottom of the panel. This turns off the Ethernet Internet connection.

  • Click the red circle at the top of the "Network" panel to close it.

Tips & Warnings

  • Consult your Internet service provider's customer service department if you are not sure about what settings to use when configuring or changing your iMac's Ethernet connection, before you turn off the Internet connection. If you are in a hurry to turn off the Internet, you can unplug the Ethernet cable from the back of the iMac. The Ethernet cable connector resembles a telephone line connector, only slightly larger.

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  • Photo Credit David Paul Morris/Getty Images News/Getty Images
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