How to Fix Wi-Fi Issue on macOS Big Sur/Catalina 10.15, Mojave, High Sierra, EI Capitan,Yosemite

Last Updated on Nov 10, 2020

There are many alternate ways to Fix Wi-Fi issue on Mac OS X. A little glitch in software creates a big problem, and it’s essentials for you like Wi-Fi, Bluetooth on Apple MacBook Air, MacBook Pro or iMac. also, refer to my last article WiFi issues with macOS Mojave, Many users are reporting their Problems that after upgrading to the latest version of MacOS, Wi-Fi not working as better worked in the prior version. So we recommend several extensive troubleshooting through that you’ll be getting resolved.

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Let’s follow the steps outlined below and check out the ways to Fix Wi-Fi issue on Mac step by steps. Maybe several users have also experienced that the Wi-Fi devices not discoverable on Apple laptop MacBook, MacBook Air/Pro or iMac then those folks can also be tried these ways.

Get More: Fix Wi-Fi issues in iOS 11 on iPhone, Wi-Fi disconnecting and dropped out in iOS 12.

Easy Alternate Ways to Fix Wi-Fi issue on Mac

Before getting started given steps, you should take a time machine backup on the safe side because in some ways you’ve to do editing some system level configuration files.

1St Way – Remove Network Configuration and Preferences File from Mac

As the best troubleshooting way, you should trash the network Plist files manually. You’re unknown about to delete system plist file on Mac then below steps.

Step 1. Turn Wi-Fi off from the wireless icon in the menu bar of Mac

Step 2. Now launch Finder and press Command +Shift+ G then enter the below listed path:


Remove Network Configuration and Preferences File from Mac


Step 3. Now you can see below files in the opened folder of your desktop or laptop, first of all, Take back up the through time machine and delete these all file – if you’ve already backup then ignore it and do delete.

How to Fix Wi-Fi issue on Mac OS X Yosemite -10.10.3

Step 4. Now reboot your Mac and then Turn ON Wi-Fi again.

Hope it would fix and you got better Wi-Fi connectivity with good speed. If this way isn’t worked for you, then try the second way which is start below.

2nd Way – Turn off iCloud Photo library on Mac if it’s ON

Internal Glitch or Background process for sync photo on Mac, Disconnect WiFi automatically.

Step 1. Go to the System Preferences

Step 2. Navigate to iCloud

Step 3. Click Options button of Photo app

Turn off iCloud Photo library

Step 4. Now do turn off iCloud Photo Library

how to do turn off iCloud Photo library on mac os x 10.10.3

That’s it. Let’s know us which in one way was useful for you out of given both as to Fix Wi-Fi issue on Mac OS Mojave, EI Capitan, Yosemite, and Earlier.

Jaysukh Patel is the founder of howtoisolve. Also self Professional Developer, Techno lover mainly for iPhone, iPad, iPod Touch and iOS, Jaysukh is one of responsible person in his family. Contact On: [email protected] [OR] [email protected]

1 Comment
  1. Method two worked, first didn’t. I run a 15” MBP late 2016 – Mojave.

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