Unlike resetting network settings on an iPhoneor Windows 10 computer, Macs has no specific function for refreshing internet and wireless connection preferences, but it can still be done. This article explains how to reset network settings on a Mac.
Follow the methods outlined below to reset network settings in macOS.
You can also remove all your Wi-Fi settings. So that you can start fresh. This involves deleting all preference plist files associated with wireless settings in macOS. Here is how:
Turn off Wifi by clicking the Turn Wi-Fi Off in the menu bar.
Go to Finder and click Go and Go To Folder. Alternatively, press Command+Shift+G
Enter the following into the field and click Go /Library/Preferences/SystemConfiguration/macOS
How to Reset Network Settings on Mac
Select the following files:
com.apple.airport.preferences.plist
com.apple.network.identification.plist or com.apple.network.eapolclient/configuration.plist
com.apple.wifi.message-tracer.plist
NetworkInterfaces.plist
preferences.plist
Copy all five files to your desktop as a backup just in case. To do this, right-click the files, select Copy, then right-click the desktop and select Paste.
Right-click the files in their original location and select Move to Bin to delete them.Restart your Mac as usual and turn its Wi-Fi back on. The five deleted files should be recreated within their original location, and all your network settings should now be reset.