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Facetime error - How do I fix it
MacBook Air (13-inch, Mid 2012)
Facetime error - How do I fix it
MacBook Air (13-inch, Mid 2012)
Troubleshooting FaceTime for Mac
http://support.apple.com/kb/TS4185
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System Preferences > Date & Time > Date & Time
Enable "Set date and time automatically".
Hope this helps.
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The server encountered an error