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system extension cannot be used AppleUSBEthernetHost.kext

I responded to the upgrade of iTunes today - to version 11.4. I did this in short succession on a Macbook Pro and iMac, both running Mavericks.


Silly me - Apple fails


On both machines I got an error message immediately after the upgrade as per the attached imageUser uploaded file


Suggestions on how to resolve this are most welcome


Oh - and somehow I cannot post to Apple Support Communities - go figure!


Thanks

MacBook Pro, OS X Mavericks (10.9.4), iTunes upgrade - 11.4

Posted on Sep 9, 2014 7:06 PM

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142 replies

system extension cannot be used AppleUSBEthernetHost.kext

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