AirPort Update 2008-004: Dropped wireless connections; other issues

Several users have noted dropped wireless connections after AirPort Update 2008-004. The problem appears to be widespread, with dozens of MacFixIt readers and hundreds of Apple Discussions threads posters reporting it.

Several users have noted dropped wireless connections after AirPort Update 2008-004. The problem appears to be widespread, with dozens of MacFixIt readers and hundreds of Apple Discussions threads posters reporting it. Among the symptoms:

  • After systems wake from sleep, they must be rebooted in order to recognize the AirPort network.
  • Wireless network is at full strength, but the actual connection drops off repeatedly
  • Slow transfers

The following fix may provide, at least temporary, relief:

Navigate to /Library/Preferences/SystemConfiguration (this is the Library folder at the root level of your hard drive) and delete the following files:

  • com.apple.airport.preferences.plist
  • com.apple.network.identification.plist
  • NetworkInterfaces.plist
  • preferences.plist

restart your Mac.

Next, add a different DNS servers, such as those from OpenDNS, to Mac OS X's repertoire. Open System Preferences and click "Network." Select "Built In Ethernet" and click Advanced. Select the DNS tab and add:

  • 208.67.222.222
  • 208.67.220.220

If you are experiencing similar issues, please let us know at http://www.macfixit.com/contact.

Resources
  • http://www.macfixit.com/co...
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