10.11.3 patch killed ethernet and AppStore cannot be verified.

Mac Mini, end 2012, running 10.11.3 last updated (as of February 27).

I've updated this morning, and all of a sudden the ethernet port will not read that there is a cable in here. (I swapped the cables and ports on the router to test and tested with other devices using the same ports and cables, router is fine).

After doing a lot of reading, I see I'm not the only person who had a problem with this update ethernet port. I'm not super tech savvy, so I don't know how to use these files "kext". And I'm not a backup time machine (which is fine for me most of the time, because I have my own system of backup for important files). I thought that I would wait just outside, and they would fix it. But...

Now, the app store won't let me download the numbers app because it can't check my computer. I did some reading on that as well, and say that it also has to do with hardware ethernet/airport and something with the kext files. I can only assume the update caused this domino effect.

Is wipe my computer and restart from a previous El Capitan, the only way to get out of this? Or y at - it a way easy and step by step to fix this without a backup time machine?

Thank you.

I have a similar problem. Seems there is a problem with the extension of the kernel. I get the following system messages:

27.02.16 16:22:40, 000 kernel [0]: ARPT: 0.978790: wl0: Broadcom BCM43a0, vendorID [0x14e4] BAR0 [0xb1a00004]

27.02.16 16:22:42, 000 kernel [0]: com.apple.iokit.AppleBCM5701Ethernet Kext is in the exclusion list, not loadable

27.02.16 16:22:42, 000 kernel [0]: can't load kext com.apple.iokit.AppleBCM5701Ethernet - was not found.

27.02.16 16:22:42, com.apple.kextd [60 207]: cannot load /System/Library/Extensions/IONetworkingFamily.kext/Contents/PlugIns/AppleBCM570 1Ethernet.kext - General error or not (libkern/common).

27.02.16 16:22:42, com.apple.kextd [60 209]: load com.apple.iokit.AppleBCM5701Ethernet failed; removal of the personalities of the kernel.

I'll try to copy the extension of the core of a system where he works...

Tags: Mac OS & System Software

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