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.
4. Select the following files and drag them to Trash or move them to a new folder on your desktop.
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.
4 thoughts on “How to Fix Sierra Wi-Fi Problems with MacBook Pro/Air”
It solve my problem, thanks so much! 🙂
Jesus, folks, you seem to be the only ones around who are able to describe a solution at all, and so concisely. Thank you ever so much (have also spread your post via Facebook)!
Worked! after an hour of trying to follow complicated suggestions from the obvious sites! Thanks soooo much
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