Network Connection Was Lost
While downloading new updates to OS, I get the message
"The network connection was lost, an error occurred while installing the selected updates."
MacBook Pro 13″, macOS 10.13
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How far were you from your router? It's possible to lose a connection if you are working via wi-fi.
I only occasionally work with my MacBook Air, but then, even from my bedroom, my router is only about 5 or 6 metres away, and there is only a single brick width of a wall.
Interference can also occur if someone is running an appliance, like a microwave oven, which can seriously affect wi-fi transmission. It could also mean that your router needs rebooting. Not a major task, but can take a few minutes.
Another person may have a better answer.
