I am trying to Install Big Sur 11.5 on my Mac but it says that I have internet problems. My internet ir working. Is anyone experiencing this problem? and how can I fix it ?
[Re-Titled by Moderator]
If this update is for Big Sur 11.5 - the error message can be misleading. There are factors like poor Wifi connection, slow wifi connection, too many other people downloading at the same time and Apple Severs are overloaded, Software on the computer interfering with the download process, running behind a VPN and or / if via wifi too many Other devices using the wifi at the same time reducing the Bandwidth to you computer.
Best Results are via Ethernet Cable to Router
There are several ways to download the Big Sur 11.5 update.
1 - Connect to Router via Ethernet connection and restart the computer in Safe Mode and then open the Apple Apps Store and get the Full Installer of Big Sur. It will be the 11.5 version and once downloaded run the installer from the Applications folder.
2 - Resart the computer in Recovery Mode ( INTEL Command + r ) and choose Reinstall macOS. It too will download the full Installer and commence the installation. For M1 CPU the Recovery Mode is Here
3 - 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
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. They may also interfere with the Download process
My Wi- Fi is working perfect high Speed
Me too…I am trying to Install Big Sur 11.5 on my Mac but it says that I have internet problems.
Same issue, I know is not my Internet,
this is a big Error from Apple
Tried. Negative. Thanks though. Glad it worked for you.
Same for me….
In case it still doesn't work remember to also try the "--force" tag. I tried it without this tag before but was "told" by the error log that there was some internet connection error. Hence this tag might indeed be very important in fixing this bug.
I read the responses here about internet speed and connection, but that clearly was not my problem. So I downloaded Big Sur directly from the App Store, and didn't use the "Software Update" feature in settings. That took a while, but it worked fine. Good luck.
I wish that had worked for me. I tried it. Same result as before. Dowloaded over 12 GB (unlike the 2.93 GB update) and then said "Download failed." I have over 900 GB free on my HD, so that's not the issue. Now I am wondering whether trying all these times to download the update, and then the full installer, are leaving fragments behind because my HD space has decreased by about 6 GB and I sure haven't added anything that large to it in the past three days!
Hands down the most frustrating Apple system update experience ever.
Apple Support thread : How to upgrade to macOS Big Sur - Apple Support , states "If upgrading from macOS Sierra or later, your Mac needs 35.5GB of available storage to upgrade..." The system which experienced this Big Sur 10.5.1 Update error is an Intel 2018 MBP 4 TB Ports with more than the required amount specified by the above Apple Support thread. I was unsuccessful via the terminal softwareupdate command method. The method that ended up working for me was creating a bootable USB Mac OS installer of the Mac OS Big Sur 10.5.1 update. This Apple Support thread will explain the process to create install media : How to create a bootable installer for macOS - Apple Support.
Steps taken to achieve successful installation of Big Sur 10.5.1 Update:
Useful as a second step - but I'd suggest others make sure you have 15GB-20GB of available disk space first!
I have similar issues.
Succeeding with cmd line
softwareupdate -i-a
if not working , the amount of required free space readable
Big Sur 11.5 Download Failed
