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The Guardian - UK
The Guardian - UK
Technology
Jack Schofield

Mac OS X says 'Your network settings have been changed'

I cannot shut down or re-start my Apple iBook. When I try, I get a message - "Your network settings have been changed by another application" - that I cannot get out of.
Bob Gallagher

The problem is quite widespread and seems to have been caused by an Apple security update, 2008-06.

According to a discussion thread on Apple's forum, you can solve the problem by removing four preference files (com.apple.airport.preferences.plist, NetworkInterfaces.plist, preferences.plist and com.apple.nat.plist) then letting Mac OS X recreate them.

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