Fixed Your Slow WiFi Connection on MacBook Mac: MacOS Big Sur, Catalina, MacOS X

Last Updated on Nov 10, 2020

In the whole world no one can endure against Slow internet Connection, whether it is iPhone or Mac, are you one of them? Right. So I decided to help in the best way on Slow WiFi Connection Problem With Your Mac, MacBook, or iMac and Mac Mini. So first analyze your situations and the exact reason for low WiFi network connectivity. Because you might be experienced due to the Router problem, Low bandwidth from internet service provider, Internal browser problem (Last time OS X Update created the problem on Safari).

we are happy to help you, submit this Form, if your solution is not covered in this article.

It doesn’t matter, what MacOS version do you own, these tips are common for all the MacBook, Mac, iMac Mac Big Sur, MacOS Catalina, Mac Mojave or running any of the MacOS. Starting off with the checking internet connection.

Common Reasons For a Low WiFi Connection on Your MacBook Pro, Mac

1). Check Internet Connection/Speed

Check internet connectivity on another apple device that is using the same internet. Or use Speed test checker online on your browser, Open Safari or Chrome browser, Open speedtest.net website to check internet speed. and Match the Downloading and Uploading speed with your internet plan. If the speed is okay on another device then you should go with the below troubleshooting. otherwise, Contact your Internet Service Provider and Request your problem.

2). Remove VPN From Your MacBook, Mac

Some secure internet service can’t compatible with your Internet, Because your MacBook is connected with the high-risk systems. So, Your connection is blocked and experience a slow internet connection. Uninstall VPN software or Disable VPN connection on your MacOS. If you are not using VPN then follow the other troubleshooting that will help to boost your internet connectivity.

3). Use Public Google DNS

Configure your private Home or office network with the public DNS, Google Public DNS will don’t block any connection and Data to your PC. Normally your private DNS is safe and Fast, But some reason if you are felt some trouble in access some website domain or Slow then I recommend using OpenDNS or GoogleDNS in your WiFi Preferences on MacBook Mac. Use This Address Using the steps given below, Preferred: 8.8.8.8Alternate: 8.8.4.4

  1. Click on Apple Logo () From Top Mac Menu > Next, Click on System Preferences.
  2. Next, Network > Click on DNS from the side panel.
  3. Click on + sign to add, And Enter 8.8.8.8 and 8.8.4.4.

    Use OpenDNS or Google DNS on MacBook Mac WiFi settings

    Use OpenDNS or Google DNS on MacBook Mac WiFi settings

  4. Click on Ok to Save. And Click on Apply Changes.
  5. That’s it.

4). Remove Your WiFi From Network Settings

Remove your saved WiFi network from your Mac WiFi Preferences settings. Your WiFi network is contracting with other wifi networks. So you have to remove the unused & Ideal WiFi network, from your WiFi Network preferences. Follow the below steps for Remove Your WiFi Network on MacBook Pro, Air.

  1. Click on Apple Logo () From Top Mac Menu > Next, Click on System Preferences.
  2. Next, Network > Click on WiFi from the side panel.
  3. Click on Advanced, And Select the WiFi Network and Click (-) sign in to Remove it.

    remove WiFi Network from mac Network Preferences

    remove WiFi Network from mac Network Preferences

  4. That’s it.

5). Reset Your WiFi Network from MacBook Mac

Right after checking the above Three steps, Still, are you acquiring Slow WiFi connection or network, Then must go to forwards ways. Best Of Luck! We’ve listed the cache files related to the Wi-Fi connection, remove all of them, and reboot the Mac.

Stuck with Network interface system files: Most of the OS X

your first attempt should be reset network preference files, by deleting it from the Mac system. Turn off WiFi from the menu item.

  1. Open Finder on Mac, Go to Go > Go to The Folder. Copy below folder path like and move. Slow WiFi connection on Mac OS X MacBook

/Library/Preferences/SystemConfiguration/ Move to Preference file on Mac

Find below files (plist) and move to another place as a backup on desktop.

  • preferences.plist
  • NetworkInterfaces.plist
  • com.apple.wifi.message-tracer.plist
  • com.apple.airport.preferences.plist
  • com.apple.network.identification.plist

restart or Reboot your Mac. Network File on System Preference

6). Add Custom Network Location

After removing the Wi-Fi preference files from the Mac, if you can’t observe any improvements in network connection, then try this.

  1. Open the System Preferences from the Apple logo.
  2. Click Network.
  3. From the sidebar, select Wi-Fi.
  4. Then, did you see, Location? Click on it and select Edit Locations….
  5. Click on (+), and add a Custom Wi-Fi name, whatever you want.
  6. Now, expand the Network Name menu and choose the Wi-Fi network, to connect.
  7. Click Advanced button and then TCP/IP tab.
  8. Select Renew DHCP Lease.
  9. Next, select DNS tab, and click (+), below the DNS Servers. If not added then, add 8.8.8.8 and 8.8.4.4, these two are Google Public DNS.
  10. Again click on the Hardware tab and Configure: Manually and MTU: Custom , where the enter 1453 in the custom field.
  11. Click OK and close the System Preferences.

7). Restart Your Router

Turn off your router completely and turn on, So your wifi network will setup again. and Fix the internet connectivity issues. Unplug the adapter of the router and after 1-2 minutes plug it back.

8). Update your MacBook Mac OS

Keep your MacBook Updated with the latest version of MacOS on your Mac. Click on Apple Logo () From Top Mac Menu > System Preferences > Software Update > Download and Install Software Update.

Or click on the Apple logo > About This Mac > Software Update.

9). Reset PRAM on MacBook Mac

  • Shut Down your MacBook and Turn on using the power button, Now, Quickly Press and Hold on “Option + Command + P + R“. Release all the Keys after 20 seconds, at that time your Mac will restart. and Release the Key after you hear the second startup time. Now, Login with your MacBook.

That’s it.

10). Reset SMC on MacBook Mac

Reset SMC – System Management Controller, doing this can fix the network connection issues with the Mac, MacBook.

  • Shut down your MacBook. Connect with power supply (Power supply required during reset).
  • Press Shift + Control + Option at the same time and Start Mac from the Power button at the same time. And release after a few seconds. Your MacBook will reboot reset all the System Configuration.
  • Read more about the SMC apple guide for your model.

11). Create a New User on MacBook

Nothing helps to you, Then fix the file system of MacOS running on your MacBook Mac with Create a new Administrator account on the same mac. Because the new Account creates a new file system so we can get fresh Network files and fix the software issues that are causing slow wifi on MacBook Mac.

  1. Click on Apple Logo () From Top Mac Menu > Next, Click on System Preferences.
  2. Click on Group & Users Option, Click on (+) sign to add a new account as an Administrator,

    create a new admin account on a mac

    create a new admin account on a mac

  3. Sign out This account and Sign in your New Account on Mac.
  4. That’s it.

12). Re-Install MacOS On MacBook Mac

Re-Installation of macOS on your MacBook Pro/Air, Feel like New Mac if this Trick doesn’t work then try to fix your WiFi hardware issues. Diagnose at your Nearby apple store, So we can book an appointment online at Apple Store and talk to the Apple Support center.


Misconfigured, Low Hardware profile router make problem on your Speed of internet data over the air. Here we have the best option as a Router for Mac. Misconfiguration can be resolved by resetting it.

Check speed test on a different device, Through iOS app (SpeedTest). Or On Browser website: speedtest.net, Problem is there then contact your internet service provider.

Try to surf with Google Chrome (Best one), Safari, Mozilla as an Alternate browser for Mac OS X Especially.

Troubleshooting steps for Poor/ Slow WiFi connection on macOS Mojave

More suggestions on solving Slow WiFi connection MacBook might be fixed with Create a new network of network settings in your case. But not helpful in my case.

Thanks, and welcome any suggestion on Poor/Slow WiFi connection. Share with us in our discussion section.

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. Reset SMC fix it. Thank You!

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