Is your Wi-Fi not working on macOS Sonoma? Here's what you can do

Wi-Fi has become an integral part of our daily lives, from checking into a hotel to working in a new office or visiting friends. It is the bridge that connects our devices to the digital world. This can be a big inconvenience when Wi-Fi on macOS Sonoma starts working.

If your Wi-Fi is not working properly on macOS Sonoma too, don’t worry, there are things you can do.

Why doesn’t Wi-Fi work on macOS Sonoma?

The first step in resolving the Wi-Fi not working macOS Sonoma issue is to determine the scope and impact of the problem. Does it affect a specific application, your Mac, or all connected devices? Is your Wi-Fi slow or not working at all?

Determining the nature of the problem helps determine the solution.

• Restart Applications
  • Start with the simplest fix: Restart the affected application. For web browsers, if necessary, consider clearing the cache from the Privacy and Security settings
• Restart your Mac
  • If the problem Out of scope of a single application, or restarting it doesn't work, restart your Mac. This will clear temporary files and resolve potential startup disk issues (on Apple silicon Macs)
• Check other devices
  • OK Wi-Fi Is the problem unique to the Mac, or does it affect other devices on the network. If multiple devices are affected, focus on your Wi-Fi router and broadband connection

Why Wi-Fi is not fixing macOS Sonoma issues There could be multiple

How to Fix macOS Sonoma Wi-Fi Issues

After narrowing down the problem, let’s focus on fixing Mac-specific Wi-Fi issues.

Things you can try to fix Wi-Fi not working properly on macOS Sonoma issue are as follows:

• Restart the router
• Refresh DNS cache
• Change DNS server
• Renew DHCP lease
• Delete and reconnect to Wi-Fi network
• Turn off firewall
• Clear old Wi-Fi network
• Run Wireless Diagnostics

How to Restart the Router

1. Unplug the Router from the Power Outlet
2. Wait for at least 30 seconds
3. Plug the router back into the power outlet
4. Wait for the router to restart. This may take a few minutes

After you restart your router, try connecting to it again to see if this fixes the Wi-Fi not working on macOS Sonoma issue.

How to flush the DNS cache in macOS Sonoma

1. Open a terminal window
2. Type the following command:
   • sudo dscacheutil -flushcache
3. Press Enter when prompted and type your password

Your DNS cache will now be flushed, and doing so may resolve network issues on macOS Sonoma.

Simply restarting the router may resolve Wi-Fi not working on macOS Sonoma issue

How to fix the issue in macOS Sonoma Change DNS Server

1. Click the Apple menu and select System Preferences
2. Click Network
3. Select your Wi-Fi network in the connection list
4. Click the Advanced button
5. Click the DNS tab
6. Click the button and enter the IP address of the new DNS server. You can choose one of the following DNS services:
   • Google Public Domain Name Resolution (8.8.8.8, 8.8.4.4)
   • Cloudflare DNS(1.1.1.1, 1.0.0.1)
   • Siheyuan9(9.9.9.9, 149.112.112.112)
   • Open domain name resolution (208.67.222.222, 208.67.220.220)
   • Clean browsing (185.228.168.9, 185.228.169.9)

Click OK to save changes. You will now be connected to the internet through the new DNS, and if DNS is an issue with your MacOS Sonoma Wi-Fi not working properly, this may be the fix you are looking for.

How to renew a DHCP lease in macOS Sonoma

1. Open a terminal window
2. Type the following command:
   • sudo ipconfig renew
3. Press Enter when prompted and type your password

Your DHCP lease will now renew. Try connecting to a site to see if your internet is back up and running on macOS Sonoma.

How to remove and reconnect to a Wi-Fi network in macOS Sonoma

1. Click the Apple menu and select System Preferences
2. Click Network
3. Select your Wi-Fi network in the connection list
4. Click the – button to delete a network
5. Click the button and select Wi-Fi from the connection type list
6. Enter the name and password of your Wi-Fi network when prompted
7. Click Create

After you complete this, try opening a site to confirm that your issue is resolved. If not, continue to the next step.

You can try deleting the old Wi-Fi network to resolve issues related to internet connection on macOS

How to in macOS Sonoma Turn off the firewall

1. Click the Apple menu and select System Preferences
2. Click Security & Privacy
3. Click the Firewall tab
4. Click the lock icon in the lower corner of the window and enter your password when prompted
5. Uncheck the box next to Turn on firewall

Click the lock icon again to save the changes and see if it works Fix Wi-Fi not working on macOS Sonoma issue.

How to clear old Wi-Fi networks in macOS Sonoma

1. Open a terminal window
2. Type the following command:
   • sudo rm /Library/Preferences/SystemConfiguration/NetworkInterfaces.plist
3. Press Enter when prompted and type your password
4. Your Wi-Fi network will now be cleared

【Note】Some of the steps mentioned in this article may require you to have administrator rights on your Mac.

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