Apparently the
sets supplied by Apple in the background patch "031-51913 Incompatible
Kernel Extension Configuration Data 3.28.1" the drivers for the Ethernet
adapter BMC5701 on a blacklist. He can no longer be executed. A patched patch
is already available for download.
As part of the
security updates "031-51913 Incompatible Kernel Extension Configuration
Data 3.28.1" Apple has apparently set the driver BMC5701 for the Ethernet
port with iMacs and MacBooks on a blacklist. He can no longer be carried out in
order, whereby it cannot connect to it with the network more. However, a report
from MacRumors According does the wireless connection yet.
Apple had
confirmed the error on Sunday. Users who cannot use the Ethernet connection, it
is recommended to connect via Wi-Fi to the network. Is it a connection to the
Internet is carried out, they should then automatically obtain an update to
version 3.28.2 of the patch, with which the driver works again.
The update can
also be installed manually. For the Terminal app must be open and the command
"sudo software update - background" be executed. After a reboot the
problem should be fixed.
If there is no
Wi-Fi, according to Apple is just a start of the recovery system of OS X. Then
must the system disk are integrated via the Disk Utility. With the Terminal app
can then restore a system folder, which overwrites the faulty update. Detailed
instructions can be found in a support post at Apple. Alternatively, can be
reinstalled on the recovery system and the entire operating system.