It can be very annoying when your Mac keeps disconnecting from the Wi-Fi network. Fortunately, this frustrating problem can be resolved by following the troubleshooting steps below.
Mac keeps disconnecting from WiFi
In many cases, the problem of routinely disconnecting from the Mac's WiFi is due to modem or router issues , a change in community settings, or the expiration of the DHCP lease.
Another reason why your Mac disconnects from WiFi or does not connect to WiFi at all is that your Mac is trying to connect to a weaker or inactive WiFi network, instead of connecting to its most popular WiFi network.
This happens if you have previously connected your MacBook to different Wi-Fi networks (office, library, airport, or other) and these networks are stored on your Mac.
1. Power cycle the modem/router
Before moving on to other troubleshooting steps, make sure the problem is not due to your router/modem having short-term technical issues.
Simply switch OFF or Power to your Modem/Router > wait 60 seconds and reconnect the Modem/Router to your power supply.
After that, you may be pleasantly surprised to see that WiFi works without interruption on your MacBook.
2. DHCP Lease Renewal
Click the Apple logo in the top menu bar, then choose System Preferences from the drop-down menu. On the next screen, click the Community icon.
On the next screen, choose your WiFi Community in the left panel. In the right panel, scroll down and click the Start button.
On the next screen, go to TCP/IP and click the Renew DHCP Lease button.
Click OK to prevent losing the revised DHCP settings on your laptop and close the community settings view.
As mentioned above, the problem may be due to the presence of multiple Wi-Fi networks registered on your MacBook. If this is the case, it is advisable to adjust the Community Predominance on your MacBook.
Click on Apple logo > System preferences > Community.
On the next screen, select WiFi in the left panel. In the right panel, scroll down a bit and click the Start button.
On the next screen, drag your "most loved" WiFi Community to the top of the Most Popular Networks window.
Click OK to avoid losing your most stylish WiFi community settings.
Note: You can remove unwanted WiFi networks from your MacBook by selecting Community and clicking the (-) minus icon.
Before you delete your current WiFi community, make sure you have entered your WiFi community password, as you may be asked to enter your password when you join a new WiFi community.
Click on the WiFi icon located in the top menu bar (top right corner) and switch OFF Community WiFi on your Mac.
Click on the Apple logo in the top menu bar > choose System Preferences from the drop-down menu and click on Community.
On the next screen, choose your WiFi Community in the left panel, click the (-) button (the minus icon) , and click Apply to remove the WiFi Community from your Mac.
On the same screen, make sure that the Automated location is selected and the (+) Icon button is pressed.
In the pop-up window, choose Wi-Fi because Interface classifies an Identifies for WiFi Community (not necessary) and click Create.
Click Apply to avoid wasting your Mac's new Wi-Fi community. Switch to the Wi-Fi community settings on your Mac and check if you can connect to the internet.
5. WiFi Diagnostic Tool
If the above strategies have not helped, you can try the Wi-Fi diagnostic software built into your MacBook and see if it offers any solution.
Open the featured search (press Command + Home keys) > sort Wireless Purple Diagnostics in the featured search window and click on Wi-Fi Diagnostics.App.
On the next screen, click the Continue button and allow the Wi-Fi Diagnostic Tool to discover your system for problems.
Note: The Wi-Fi Diagnostic software program may briefly change some of your laptop's community settings.
6. Change DNS servers
If you regularly experience problems with Wi-Fi connectivity, the problem could be that your Internet Service Provider (ISP) DNS server is overloaded or experiencing issues.
In this case, switching to Google DNS or the DNS servers offered by Amazon or Open-DNS may help resolve the issue.
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My name is Javier Chirinos and I am passionate about technology. Ever since I can remember, I have been interested in computers and video games, and that passion has turned into a job.
I have been publishing about technology and gadgets on the Internet for over 15 years, especially in mundobytes.com
I am also an expert in online marketing and communication and have knowledge in WordPress development.