Let’s say you have a Samsung phone. You connect to a Wi-Fi network and get a notification saying:

[Wi-Fi name] has no internet access

This could happen because your phone isn’t getting DNS responses for certain domains, such as:

  • www.google.com
  • google.com
  • connectivitycheck.gstatic.com
  • play.googleapis.com
  • www.goooooooooooooooooooooooooooooooooooooooooooooooooooooooooogle.com (not a joke)

…and a few others.

You can find the full list by capturing the DNS queries your phone makes when connecting to Wi-Fi.

I ran into this issue when trying to connect to my home Wi-Fi, and my Pi-hole was actively blocking DNS requests.

One of the blocklists I had enabled was blocking www.google.com. Allowing it fixed the problem.