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Connection lost before macOS update is completed on MacBook Air

MacBook Air can't update OS. always says connection lost before download is complete. I don't have a connection problem anywhere else



[Re-Titled by Moderator]

MacBook Air 13″, macOS 10.14

Posted on Nov 10, 2021 12:07 PM

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Question marked as Best reply

Posted on Nov 11, 2021 2:36 AM

There are factors:


1 - Like poor Wifi connection


2 - Slow wifi connection


3 - Too many other people downloading at the same time and Apple Severs are overloaded


4 - Software on the computer interfering with the download process including AntiVirus Software


5 - Running behind a VPN which may increase Packet losses


6 - If via wifi too many Other devices using the wifi at the same time reducing the Bandwidth to your computer. 


7 - Best Results are via Ethernet Cable to Router

3 replies
Question marked as Best reply

Nov 11, 2021 2:36 AM in response to johndixon5

There are factors:


1 - Like poor Wifi connection


2 - Slow wifi connection


3 - Too many other people downloading at the same time and Apple Severs are overloaded


4 - Software on the computer interfering with the download process including AntiVirus Software


5 - Running behind a VPN which may increase Packet losses


6 - If via wifi too many Other devices using the wifi at the same time reducing the Bandwidth to your computer. 


7 - Best Results are via Ethernet Cable to Router

Connection lost before macOS update is completed on MacBook Air

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