Fix An internet connection is required to install macOS
It is recommended that you try out each of the below-mentioned workarounds and then see which one spells out success. So with that in mind, let’s get started.
FIX 1: Disable VPN
If you are using a virtual private network to carry out data exchange via an encrypted tunnel or just to access geo-restricted contents, then you should consider disabling it as it could conflict with Apple’s download server.
Turn off Firewall
While Firewall does make the entire data exchange process secure, however, in some instances, it could prevent legitimate traffic from coming your way. Therefore you should consider temporarily disabling it and then check out the results.
FIX 3: Use Google DNS
Your Internet Service Provider would have automatically assigned a Domain Name Server to your system. However, over the due course of time, the data might get corrupted or outdated, and hence the web browser might not be able to translate the URL to its associated IP Address. In such instances, you could opt for a third-party DNS such as the ones from Google.
FIX 4: Boot to Safe Mode
In some instances, a third-party app especially those that belong to the networking domain might end up conflicting with the network settings. The best way to verify and rectify it is to boot your Mac to Safe Mode. in this mode, all the third-party apps and services will be disabled. And if the underlying issue gets resolved in this mode, then the culprit is indeed a third-party app that you need to uninstall from your Mac at the earliest. Here’s how all of this could be done:
FIX 5: Use Ethernet Cable
If possible, consider switching over to Ethernet and then retry downloading the update. Do note that once you have connected the Ethernet cable, it is recommended to turn off the WiFi [or else macOS will still give preference to the wireless network]. So these were the various methods to fix the “An internet connection is required to install macOS”. If you have any queries concerning the aforementioned steps, do let us know in the comments. We will get back to you with a solution at the earliest.
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