My ethernet does not work. Is this due to a recent security update?

I've seen complaints (reddit, macrumor.com...) that recent security

Update "031-51913 Kernel Extension incompatible data setting 3.28.1"

has 'broken' my on my iMac ethernet connection 2015 later. I decided to buy this machine

later the 2/26 because my iMac model equipped with mid-2009 seems to be dying, he

lost its ethernet connection in the afternoon. OFF to Best Buy. The new machine put in place very well, but on 2/27,

It was suddenly unable to ethernet. Maybe bad software system killed them both! Comments, advice?

If you read this post, you will see there is a fix you can download.

Re: Ethernet not working only not with El Capitan

Tags: Mac OS & System Software

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