The reason and solution of the invalidation of the imac and the MBP Ethernet interface

For users who use Apple's Mac system, after a recent upgrade to the system patch, there is a problem with the failure of the Ethernet interface on the IMAC and MacBook Pro, which causes the user to connect to the network via WiFi only, and not directly through the Ethernet interface network. What is the cause of this problem? What should we do about it? Follow the small series together to understand the solution!

Workaround first, check to see if the imac and MacBook Pro Ethernet interfaces fail due to security upgrades:

1, check your version number information

"Operations", select the system Information from the Apple menu to view the option key.

2, if your imac and MacBook Pro version is not the latest version, you can upgrade the version, and then try to see if there is the same problem.

3, look for "incompatible kernel extensions of configuration data."

See Apple support for details: Click to view >>

4, waiting for Apple to repair the official bug.

Through the above method, the user can solve the problem that cannot connect the network through the Ethernet interface under the MAC system.