This MacOS version doesn't support Wi-Fi connections.
This MacOS version doesn't support Wi-Fi connections.
I fixed my 2015 MacBook Air and noticed it came with OSX Yosemite 10.10, the original version. After upgrading to High Sierra 10.13, the Wi-Fi stopped working. Restoring to 10.10 via a recovery image resolved the issue. It seems the problem only appears with newer versions of Yosemetie. I performed a clean install to check for driver problems, but the issue persists.
Explain what happens when trying to link the Wi-Fi while using High Sierra. Describe the process step by step, including any warnings or prompts. Ask if you've tried connecting to other networks like neighbors' or mobile hotspots. Note whether the issue appears only on your local network or across all connections during High Sierra use.
Apple is pushing you toward a new MacBook air. Open the UNIX terminal and run the UNIX commands. Your regular network manager won’t help if your system keeps crashing with errors. Use this syntax to connect: spoiler networksetup -setairportnetwork [interface] [router SSID] [password]. Replace interface with your adapter, router SSID with your Wi-Fi name, and password with the right one. This will show you all nearby networks. Spoiler: a link might help. Check out this guide for more tips.