How can I update my MacBook Air when I can't connect to Wi-Fi?

Hi barbro242,

Welcome to the Apple Community.

Re: How can i update my MacBook when I can't Connect to Wi-Fi.

Have you tried re-starting your Mac ?

You might want to try turning off your modem, waiting a few minutes

and turning modem on again. Then see if you can connect ok.

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If you still need help:

Apple Support have articles online that may help troubleshoot:

Connect to the internet with your Mac - Apple Support

Change Wi-Fi preferences on Mac – Apple Support

Recommended settings for Wi-Fi routers and access points - Apple Support

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Other articles if needed:

Check VPN (Virtual Private Network) and third-party software to help resolve network connectivity issues – Apple Support

Resolve Wi-Fi and Bluetooth issues caused by wireless interference - Apple Support

Solve internet connection problems on Mac – Apple Support

All the best :-)