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Bad Apple update caused Ethernet to stop working recently (02/29/2016)

by on Mar.01, 2016, under Techie

This is pretty much a lot of copy and paste from here the article on the Apple Support site, but I wanted to find it easier than looking on their site.

See if the bad update was installed:
Follow these steps to see if the update was installed on your Mac.

  • Launch the System Information app (Applications > Utilities or hold down the Option key and select Apple menu > System Information).
  • In the left column, look for the Software header and expand it if needed. Select Installations.
  • In the list in the top section of the main window, click the Software Name header to alphabetize the list.
  • Scroll though the list and look for “Incompatible Kernel Extension Configuration Data” in the Software Name column. Then look at the version number.
  • If the version is 3.28.1, you have the bad update and will need to get the latest version.

Install the new update via Wi-Fi:
Assuming you have Wi-Fi, you can use it to get the update. Get connected over Wi-Fi and follow these steps.

  • Launch Terminal (Applications > Utilities).
  • Enter the following:
    sudo softwareupdate —background
  • This will update Incompatible Kernel Extension Configuration Data to version 3.28.2, which will correct the problem.

If you don’t have access to Wi-fi see the detailed instructions on Apples Support site for how to fix this by clicking here.


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