I have a Samsung Galaxy S7 edge running Android 8.0.

Is there a way to prevent the phone from connecting to open wifi networks? If wifi is on, the phone will always connect to any open network within reach, even new networks I had never connected to (so "forgetting" them does nothing).

It's annoying, not to mention a privacy/security risk, because most of these networks require some kind of login via a browser, so connecting to them effectively means disabling internet access.

E.g. I may be walking down the street or in a bus, the phone picks up the network from a cafe, a hotel, a taxi, and whatever I was doing that required a data connection (eg streaming music) stops.

I seem to remember there used to be an option to prevent connections to open wifi network in earlier Android versions, but I can't find it - don't know if it was removed in Android 8 or by Samsung. All the solutions I have found online refer to older versions of Android.



  • 1
    Could it be you have your device configured to automatically connect to any open wifi? That article is for the Nexus devices, so I'm not sure whether or where Samsung devices might have that setting. But here's an article on that topic for the S7 specifically which you might wish to check. – Izzy May 15 '18 at 12:35
  • The thing for the Nexus doesn't apply to the S7 (no such option). The suggestions in the other link are a start but not a real solution: you can forget networks you have connected to, but you still get connected to new networks you have not encountered. The same applies to restricting networks. I don't understand who on Earth is the genius who decided to remove this feature. Goes to show that, in IT, new versions can often be worse! – Pythonista anonymous May 15 '18 at 13:28
  • "New" doesn't necessarily mean "better" – but that's not restricted to IT :) I don't know what Samsung did there. For all my devices, I have to explicitly connect to a network once before they auto-connect to it. But then, I neither have a Samsung device nor Android 8… – Izzy May 15 '18 at 13:37

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