By Roman Loyola
Ethernet. Don’t be embarrassed if you have no idea what it is; after all, Apple doesn’t even include an ethernet port on its laptops anymore. For the uninitiated, it’s a network connection type that involves using an actual cable.
On the desktop, though, Apple still includes an ethernet port. Recently, Apple issued a minor kernel extension update for OS X, but the update had a bug that disabled ethernet. Apple fixed the offending update, but if you installed the update and still see problems, Apple has a support article for troubleshooting and fixing your disabled ethernet.
If you have an ethernet and Wi-Fi working at the same time, you may not have noticed your ethernet connection not working. So it’s worth a few minutes of your time to check your connection.
Read more here:: Apple issues a fix for ethernet disabled by a recent OS X update