How to Fix Sierra Wi-Fi Problems with MacBook Pro/Air

Many people like to work out of office with a light and portable MacBook. However, without Wi-Fi, even a powerful MacBook Pro could be a brick in certain instances. Unluckily, many users experienced Wi-Fi problems in macOS Sierra with their MacBook, including those who have installed the latest Sierra 10.12.4 update recently. The most general Wi-Fi issues seems to be  MacBook either won’t connect to Wi-Fi or have incredible slow Internet connecting speed when using Wi-Fi.

How to Fix Wi-Fi problems in macOS Sierra? Make sure that your router works correctly firstly, then check out the steps below to get rid of current Wi-Fi preferences to resolve wireless connection with ease in macOS Sierra.

5 Steps to Fix MacBook Wi-Fi Problems in macOS Sierra

1. Quit all apps on your Mac that are using Wi-Fi and turn off Wi-Fi from the upper right corner of your screen.

2. Right click the Finder icon from the Dock and choose “Go to Folder”.

3. Enter “/Library/Preferences/SystemConfiguration/“ and click Go.

How to Fix MacBook Wi-Fi Problems in macOS Sierra
How to Fix MacBook Wi-Fi Problems in macOS Sierra

4. Select the following files and drag them to Trash or move them to a new folder on your desktop.

apple.airport.preferences.plist

com.apple.wifi.message-tracer.plist

NetworkInterfaces.plist

preferences.plist

How to Fix Sierra Wi-Fi Problems with MacBook
How to Fix Sierra Wi-Fi Problems with MacBook

5. Reboot both your MacBook and router. Then turn on Wi-Fi and now the Internet connection of your Mac should work properly.

Any other solution to solve Wi-Fi issues in macOS Sierra? Inform us via comment.

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