This article will guide you on how to configure your MacOS computer/laptop to use google public DNS.
1. Go to System Preferences then Network.
2. Select the Internet connection you’re connected to, and click Advanced.
3. Click the DNS tab.
4. Click the DNS in the box on the left and click the – button.
5. Now click the plus + button then type 8.8.8.8 and 8.8.4.4
6. Click Okay.