Reset Wifi preference files

lizzard1981

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Joined
Nov 5, 2012
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Just wanted to share the following, as I was having a lot of issues with connecting to Wifi on my Mac and managed to resolve it once and for all by following these steps:

* Pull down the Wi-Fi menu and turn WiFI OFF.
* From any Finder window, hit Command+Shift+G to bring up Go To Folder, and enter the following path:
  • /Library/Preferences/SystemConfiguration/
* Locate the following files, copy them to the desktop for a backup, then delete them from the /SystemConfiguration/ folder:
  • com.apple.airport.preferences.plist
  • com.apple.network.identification.plist
  • NetworkInterfaces.plist
  • preferences.plist
* Empty the Trash and reboot the Mac.
* Turn WiFi back ON from the WiFi menu, join your preferred network as usual.

This process forces OS X to create all new preference files for wireless networking, which can be an effective troubleshooting strategy if the wifi problems began after upgrading versions of Mac OS X and even installing incremental system updates. Never even had even 1 issue with my Wifi after this!
:D
 
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