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macOS BigSur can't shut down any longer

I can't shut down my computer. It crashes on shutdown and does a restart.

So unless I cut the power my Mac hasn't been shut down for months


I did reset the SMC. But that did nothing

(Who in the last 20 years did this help anyway)


This is the error report:




[Image Edited by Moderator to Remove Serial Number]

Posted on May 18, 2021 1:36 AM

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Question marked as Top-ranking reply

Posted on May 19, 2021 7:50 AM

You have a great number of launch agents, launch daemons and login items.

It is hard to say which, if any, are causing the problem.

I would start by unmounting the Drobo, and see if that helps.

It does appear in a relatively prominent location in the kernel panic report.

If things work ok without the Drobo you may want to check if there is updated software for it, or check their forum (I assume there is one) for advice.

If the problem persists, then we will try to figure out what other suspects we can see.

6 replies
Question marked as Top-ranking reply

May 19, 2021 7:50 AM in response to Seppentoni

You have a great number of launch agents, launch daemons and login items.

It is hard to say which, if any, are causing the problem.

I would start by unmounting the Drobo, and see if that helps.

It does appear in a relatively prominent location in the kernel panic report.

If things work ok without the Drobo you may want to check if there is updated software for it, or check their forum (I assume there is one) for advice.

If the problem persists, then we will try to figure out what other suspects we can see.

May 18, 2021 4:04 AM in response to Seppentoni

Are there any AntiVirus, Disk Cleaner, Optimizers, Defrag, VPNs etc installed which should be removed as per Developers Instructions. They are useless, unneeded, cause havoc and interfere with the normal operation of the OS and may even Corrupt the OS requiring a Reinstallation. The Built-in Security of Big Sur is all that is required.


Have seen others on these Forums with combinations of above software and after removing - system performed as expected/

macOS BigSur can't shut down any longer

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