mac pro won’t connect net prefs all green
Mac Pro 2013 network working but MAC won’t connect even though net preferences are showing green
launch a Browser and enter 1.1.1.1 and press return.
If you get the CloudFlare** splash page, your internet connection is working fine, but Domain Name Server (DNS) lookup is not fine.
**CloudFlare is NOT part of the solution, they just have THE easiest to remember all-numeric IP address that reliably answers with stuff you can easily see.