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iMessage on Mac not working

My iMessage on my computer says that the device is not authenticated…it worked one second and now doesn't?! any tips?

MacBook Air, iOS 7.0.3

Posted on Dec 9, 2013 6:57 AM

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Question marked as Best reply

Posted on Dec 9, 2013 2:06 PM

What is the exact, complete text of the error message?

3 replies

Dec 9, 2013 11:08 PM in response to Chilikenyan

Please take each of the following steps that you haven't already tried, until the issue is reolved. If there's no resolution after Step 3, post your results.

Step 1

Sign out of iMessage in the Accounts tab of the preferences dialog, then sign back in.

Step 2

Log out of your user account and log back in.

Step 3

Boot in safe mode and test, then reboot as usual and test again.


Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.

Safe mode is much slower to boot and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain iMacs. The next normal boot may also be somewhat slow.

The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.

iMessage on Mac not working

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