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The latest update macOS Monterey 12.3.1 will not update. Why did this happen?

Why can't I upload the newest upgrade, macOS Monterey 12.3.1?

iMac 27″ 5K, macOS 12.2

Posted on Apr 28, 2022 9:06 AM

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5 replies

May 2, 2022 2:22 AM in response to Questiongirl868

The Age of this computer will Govern what newer version of macOS it will Qualify to install. Use About this Mac from the Apple Icon on Desktop - the required Information will be there.


With the above information in-hand - follow this How to get old versions of macOS and verify what version this computer Qualifies to install.  For Best results use Safari to commence the download as Others may not work.


Safari will open a redirect and open the Apple Store where the download can commence.


Computer Qualify for the Monterey upgrade


macOS Big Sur 11 hardware requirements


macOS Catalina 10.15 hardware requirements


Caution - jumping over all the newer versions and directly to Big Sur  / Monterey on Qualifying computers is Technically possible - there are those who have attempted and were successful.


Then there are those who attempted and had less than good results.


If this is a Production or Mission Critical Set-up - a more prudent and measure approach is suggested. 


The above is from observations on the Apple Support Community Forums and IMHO


Tips Big Sir Upgrade Released Nov 2020


Tips Monterey Upgrade  Released Oct 25, 2021


Make Time Machine Backup  is very useful and can be used to Revert to Previous Working macOS


Notation - Mojave is the Last version to support 32 bit applications / extensions and Drivers. Catalina, Big Sur & Monterey supports only 64 bit and there is no workaround.


Suggest using Go64 to find 32 bit application before attempting the upGrade. Some or many of the Application already installed may required update or upGrades to 64 Bit Versions.

May 1, 2022 2:38 PM in response to ku4hx

MacBook air intel processor. I have an update available for Monterey 12.3.1-12.23 GB but when I click upgrade now it goes through the whole process but at the end gives me a message: The network connection was lost. An error occured while installing the selected updates.


so I had a few different updates so I unclicked Monterey and all the others went through, so I tried Monterey by itself but still get the same message.


I’m currently running Mojave 10.14.6


appreciate any help you can give

The latest update macOS Monterey 12.3.1 will not update. Why did this happen?

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