Problems authenticating on public wifi

At Starbucks or McDonalds, on airplanes, at libraries or anywhere else they have free wifi you get popups asking you to accept terms and conditions and click a [Connect Now] button.

If you ever have problems getting these screens to display it’s almost certainly because you’re using non-default DNS servers. The solution for me was to go to System Preferences > Network and create a new Location called “Default DNS”.

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