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
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
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
I will bet you are using Wi-Fi to do the download. Try using a wired Ethernet connection and I will bet it goes just fine. Sometimes Wi-Fi works just fine, Often, it does not. It is too slow for these very large files and corruption can occur. You definitely do not want to install a corrupted operating system file.
Start with this...
Safe Boot, (holding Shift key down at startup), does the problem occur in Safe Mode? Could take 10 minutes.
Connection lost before macOS update is completed on MacBook Air
