How can I install macOS on MacBook Air using wired network, not Wi-Fi?

Question

sticastica Author

Level 1

4 points

How can I install macOS on MacBook Air using wired network, not Wi-Fi?

Hi I have a macbook air 2019 model a1932. I would like to reinstall the operating system,

I prepared an sd card with SOnoma.

When I turn on the Mac holding down the Option key the Sonoma icon appears on the screen,

if I select it then the system asks me to choose a wifi network but it seems that it does not work,

in fact I enter the password but the system checks forever (password is correct).

I would like to select the wired network instead, how can I do it?

[Re-Titled by Moderator]

MacBook Air (2018 – 2020)

Posted on Jun 2, 2025 06:52 AM

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Answer 1

Jun 2, 2025 10:39 AM in response to D.I. Johnson

D.I. Johnson wrote:

This: Apple USB-C Ethernet Adapter - Amazon

or something similar to get you connected via ethernet cable to your router.

Connect the cable to the router before starting your Mac.

FWIW: That link is the USB-A to Ethernet dongle, not USB-C. Best case, it’ll need a second dongle to get from the MacBook Air 2019 USB-C ports to USB-A.

Before the dongle path, I’d try a NVRAM reset, and test the Wi-Fi again: Reset NVRAM on your Mac - Apple Support

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Answer 2

Jun 2, 2025 10:49 AM in response to MrHoffman

MrHoffman wrote:

[...]

FWIW: That link is the USB-A to Ethernet dongle, not USB-C. Best case, it’ll need a second dongle to get from the MacBook Air 2019 USB-C ports to USB-A.

Oops! You are correct and I need to get food! 🙂

It should work with a A-C plug adapter.

Better yet, there's this Belkin USB-C Ethernet Adapter - Apple