User profile for user: Hank Testa1
Hank Testa1 Author
User level: Level 1
11 points

Unable to check for updates...Make sure you are connected to the Internet.

Have been having this problem since seeing there is an update to Big Sur. I get the same response from the "About this Mac...Software Update" or by going directly to the App Store. In App Store I see "macOS Big Sur" but when I click on VIEW I get the same "Unable to check for updates" response. Other apps download/install OK. ?????


I have a 2020 Mini M1. Big Sur 11.4.


Did the Wi-Fi diagnostics with no meaningful result other than while diagnostics was monitoring, the connection dropped. Diagnostic report was of no help. I've reset the modem & Apple Airport Extreme & rebooted the computer several times.


Is there something about the Big Sur 11.5 update that is incompatible with my Mini?


Any suggestions are appreciated.

Posted on Jul 24, 2021 8:57 AM

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User profile for user: Owl-53
Owl-53
User level: Level 10
102,307 points

Posted on Jul 24, 2021 10:08 AM

This method may seem unnecessary but sometimes the Router Restart clears Network issues from ISP to Apple Servers


Shutdown Router. Shutdown computer and disconnect all External Drives. Restart Router. Connect to Router via Ethernet Cable. If via Wifi - Disconnect all other Devices using the Wifi - want the Maximum Bandwidth only for this computer. Restart computer in  Safe Mode. It does a Repair Disk, Clear System Cache files and only load Apple Software, extensions and Fonts. Will load slowly - Normal. Once Logged in - open Apple Apps Store and  Get the Full Version of Big Sur. It will take some time and several pauses will occur - normal. Countdown clock may say 15 minutes but in Real time may be 30 minutes. Same goes for clock at 10 minutes could be 20 minutes in Real time. Eventually , Full Installer will download and a New Application in Applications Folder will present called Install Big Sur. Stop there and perform a Time Machine Backup. If desired - have an External Drive - Copy & Paste the Install Big Sur Application to external drive for future usage - making a Bootable Installer. Now run the Installer.


Have found this method more reliable than the Software Update which is very iffy at best

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User profile for user: Hank Testa1
Hank Testa1 Author
User level: Level 1
11 points

Jul 26, 2021 1:16 PM in response to Owl-53

I bought my first 128K Mac in June of 1984 and I think this is my 10th one so far, but this problem is the toughest one yet! I'm a reasonably competent user, but certainly don't know the minutia of the operating system. That said......


PCMatic is long gone...never really like it...but it made no difference. Got rid of MalwareBytes. I went through all the apps looking for the obvious, but nothing jumped out at me. Deleted apps that looked like they might even be remotely suspect. I even perused the "hidden files" but the culprit remains hidden.


Etrecheck Pro seems to do a comprehensive job of analysis...would it's report be of help? There are potential problems flagged, but some of the recommended changes/fixes/solutions are beyond my knowledge to know if they are real or not.

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Unable to check for updates...Make sure you are connected to the Internet.

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