Mac keeps disconnecting from WiFi network

It can be really frustrating when your Mac keeps disconnecting from the WiFi network. Luckily, this annoying problem can be fixed with the troubleshooting steps listed below.

Mac disconnects from WiFi frequently

In many cases, the problem of frequent wireless disconnection from Mac occurs because of modem or router problems, network settings have changed, or a DHCP lease has expired.

Another reason for Mac disconnecting from WiFi or not connecting to WiFi at all is that Mac is trying to connect to a weaker or inactive WiFi network instead of connecting to your preferred WiFi network associate.

This can happen if you previously connected your MacBook to other WiFi networks (office, library, airport or other) and those networks are stored on your Mac.

1. Switch the modem/router off and on again

Before attempting any further troubleshooting steps, make sure the issue is not caused by your router/modem experiencing intermittent technical glitches.

Just switch OUT the power supply to your modem/router > wait 60 seconds and reconnect modem router to its power source.

After that, you might be pleasantly surprised to find that WiFi works without interruption on your MacBook.

2. Renew DHCP lease

Click on Apple logo Select from the top menu bar system settings in the drop down menu. On the next screen, click the network Symbol.

Network Preferences option on Mac

On the next screen, select yours WiFi network in the left pane. In the right pane, scroll down and click Progressive Button.

Open the advanced network settings on the Mac

Switch to on the next screen TCP/IP tab and click Renew DHCP lease Button.

Renew the DHCP lease option on the Mac

Click on OK to save the revised DHCP settings to your computer and close the Network Settings screen.

3. Set up network priority

As mentioned above, the problem can be due to the presence of multiple saved WiFi networks on your MacBook. If this is the case, you need to set up network priority on your MacBook.

Click on Apple logo > system settings > network.

Network icon in the System Preferences screen on Mac

Select on the next screen Wireless Internet access in the left pane. In the right pane, scroll down a bit and click the Progressive Button.

Advanced button on the Mac network settings screen

On the next screen, drag your favorite WiFi network at the top of the Preferred Networks window.

Select Preferred Wi-Fi network on Mac

Click on OK to save your preferred WiFi network settings.

Note: You can remove unwanted Wi-Fi networks from your MacBook by selecting network and click the (-) minus symbol.

4. Create a new WiFi network

Before you remove your current WiFi network, make sure you write down your WiFi network password, as you may be prompted to enter the password when you join the new WiFi network.

Click on wifi icon located in the top menu bar (top right corner) and switch OUT WiFi network on your Mac.

Turn on WiFi

Click on Apple logo in the top menu bar > select system settings in the drop down menu and click network.

Network settings icon on Mac

On the next screen, select yours WiFi network In the left pane, click the (-) minus symbol and click Apply to remove the WiFi network from your Mac.

Remove WiFi network on Mac

Make sure on the same screen Automatically Location is selected and click on (+) icon.

Add network to Mac

Select in the popup Wireless Internet access as the interfaceType A Surname for the WiFi network (optional) and click Create.

Create a WiFi network on Mac

Click on Apply to save the new WiFi network on your Mac. Switch ON the WiFi network on your Mac and see if you can connect to the internet.

5. Try the Wireless Diagnostic Tool

If the above methods didn’t help, you can try the built-in wireless diagnostic tool available on your MacBook and see if it has any suggestions.

Open Spotlight search (press command + place keys) > enter wireless diagnostics in the Spotlight search window and click Wireless Diagnostics app.

On the next screen, click the Continue button and allow the Wireless Diagnostic Tool to find problems on your device.

Note: The wireless diagnostic tool can temporarily change certain network settings on your computer.

6. Change DNS server

If you’re having frequent WiFi connection problems, the problem may be related to your internet service provider’s (ISP) DNS server being overloaded or having problems.

In such a case, switching to Google DNS or Amazon DNS servers or Open-DNS can help to fix the problem.


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