"Your connection is not private" error on google chrome--but only with ethernet connection (new macbook pro)

Hi there danicalir,

Thank you for posting in the Apple Support Communities. I understand you're receiving an alert about your connection when you use an ethernet adapter.

Do you get the same or similar alerts when you use the adapter with the built-in Safari app? Knowing this would be a quick way to help narrow things down a bit.

Testing this in a temporary administrator account would be a great idea as well. This would tell you if the issue is system-wide or user account-specific, which may help to identify a solution. Here are the steps you'll need: How to test an issue in another user account on your Mac

Once you create the temporary user account, click Apple menu () > Log Out, and then log into the test user. Then, test the adapter with both Chrome and Safari to see how it works. The link above has some great additional steps you can try once you have the testing results.

I hope this helps get you started.

Cheers.