

It’s not an elegant solution, but happily is only necessary if you need Ethernet immediately.


Scroll though the list and look for “Incompatible Kernel Extension Configuration Data” in the Software Name column.In the list in the top section of the main window, click the Software Nameheader to alphabetize the list.In the left column, look for the Software header and expand it if needed.Launch the System Information app ( Applications > Utilities or hold down the Option key and select Apple menu > System Information.See if the bad update was installedįollow these steps to see if the update was installed on your Mac. So it’s worth a few minutes of your time to check your connection. If you have encountered this problem, take a look at a solution.Īccording to 9to5mac reports that the security upgrade is Incompatible Kernel Extension Configuration Data 3.28.1, after the upgrade, Broadcom BCM5701 NIC driver will be blacklisted, the Ethernet interface associated with this driver will not work.Ĭurrently, Apple has released 3.28.2 to fix this issue, so whether the WiFi connection works properly on your Mac devices, the Ethernet issue can be fixed as long as the Incompatible Kernel Extension Configuration Data be upgraded to 3.28.2.īut is usually, most people have an ethernet and Wi-Fi working at the same time, they may not have noticed the ethernet connection not working. Recently, there are many Mac users said their Mac devices can not be wired Internet access after security upgrades, because the network card driver be added to the blacklist.
