Time machine backup not running

My Time Machine backups aren't running automatically. I can do a backup using the "Back Up Now" menu item, but they won't run automatically.


Any ideas what to try?

iMac (Retina 5K, 27-inch, Late 2014), OS X El Capitan (10.11)

Posted on Oct 3, 2015 11:41 AM

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240 replies

Oct 11, 2015 4:58 PM in response to FlyignDiver

Same problem on our media computer (Late 2009 Mini - was server 10.7.5 then 10.10 bumped to 10.11) with Time Machine backups not occuring automatically to a Drobo 5N NAS with a TM share that still works for other machinces on 10.10 or earlier. Deleting TimeMachine.plist also did not correct the problem. It also stays on playing iTunes so no sleep/wake backup testing done.

Oct 21, 2015 4:55 PM in response to GreekGeek1157

All 3 machines I have personally seen this happen on are all upgrades of various versions.


On my Macbook I again reset Time Machine by deleting the .plist and started from scratch (excluding almost everything to make backup small). It still skipped all future backups.


I have seen it where some machines it will kick off a backup if the machine has been asleep or off over an hour when turned on.


-Kevin

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Time machine backup not running

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