No Internet access after OS x upgrade update

Apple recently for the OS X pushed a security upgrade, however, there have been many user feedback, after the update can not be wired to the Internet, after the identification of the original NIC driver was added to the blacklist can not start, and here also to the users have not encountered this problem to mention a wake-up call.

It is understood that this led to the MAC can not wireless internet security upgrade named "031-51913 incompatible Kernel Extension Configuration Data 3.28.1", it will Broadcom BCM5701 network card driver listed as Blacklist, the Ethernet interface associated with this drive is invalidated.

At this point, some users can still access WiFi for wireless internet access, but also a user said that even the wireless network can not be used. In response, Apple has quickly removed "3.28.1" and pushed new "3.28.2" upgrades, while also providing solutions to different situations for users who are unable to access the Internet, mainly to find ways to upgrade to "3.28.2".

The following are solutions that allow you to use WiFi access:

-Open Terminal Command Window

-Enter "sudo softwareupdate--background" and enter to upgrade "incompatible Kernel Extension Configuration Data" to the latest version

-Launch Terminal command window, reboot

If you can't access the network via WiFi, go to the Apple website to see another detailed solution.