Oct 11, 2019 · Every Mac is equipped to connect to the Internet several ways. WiFi is now the most commonly used. If you aren't in a WiFi hotspot, you can always use the data on your phone and create a Personal Hotspot (works best if you have an iPhone). Another way is with an Ethernet cable.
Fix: Cannot Connect to the App Store - Appuals.com May 12, 2019 Why won't my Mac connect to Wi-Fi? 7 ways to troubleshoot If your Mac won't connect to Wi-Fi, or if your connection drops out for seemingly mysterious reasons, there are several solutions you can try. No Internet with new router - MAC spoofing | Answer Nov 28, 2016
Currently Ethernet shows connected but no access To the internet. My guess is there is an issue with the iP address as the internet works on wifi with the Ethernet cable disconnected and slowly with it connected. With wifi off the Ethernet still doesn’t connect to internet even though shows green.
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Oct 11, 2019
Mac troubleshooting: how to fix Wi-Fi connection problems