Galaxy S9 And Galaxy S9 Plus: “Your Connection Is Not Private” Error

As a Galaxy S9 Plus user, seeing the “” notification can only happen within the internet browser. If you too have recently launched the Google Chrome and saw this message “NET::ERR_CERT_AUTHORITY_INVALID” on the screen, you can be sure it’s not an SSL connection error that you’re looking at.

We’re here to tell you that this is actually a common error among the Galaxy S9 and Galaxy S9 Plus owners. And we’d like to add that we totally get it how frustrating it must be for you to hear that your connection is not private. The first thing that crosses your mind would probably have to do with all the cyber-attacks that we get to hear about on the news, every single day.


Can your personal information really be at risk when accessing a website that triggers the “Your connection is not private” message? Even if it’s on… Facebook, or on any other website you’ve been using so many times before, without any kind of problems? And what happened that your connection became vulnerable all of a sudden?

To kill the suspense, things aren’t as bad as they look. The error isn’t just common on Samsung Galaxy S9 and Samsung Galaxy S9 Plus devices, but also on many other Android phones. And when it shows up, it will basically display the entire notification from below:

“Your connection is not private!

Attackers might be trying to steal your information from website.com (for example, passwords, messages, credit cards etc.)



Again, it’s terrifying to hear about attackers stealing your information. And you’re probably thinking of all the times you’ve used your credit card on your smartphone, wondering if there’s any relevant data stored on it that you are now about to compromise.

You’ll see, there’s a lot to debate on this topic. Before we get there, let us just list the four options that you have at hand for fixing this error. One look at it will reveal whether the threat of the attackers is as real as it seems right now…

  1. First things first, change Date & Time settings;
  2. Second, clear the Chrome history from the Browsing Data section;
  3. Third, stop using that public network and select a wireless private one instead;
  4. Fourth, factory reset the phone and start configuring it from scratch.


Between me and you, the fifth option is to ignore the “Your connection is not private” message and simply use that website. Whether you’ll encounter any problems or not because of that is something you’ll find out soon enough.


To change the Date & Time settings of the Android device

  1. Swipe down the Notification Panel;
  2. Tap on the gear icon that launches the Settings;
  3. Go all the way to the Date & Time section from the Settings menu;
  4. Find the Automatic Date & Time option and check its box to activate this feature.

By enabling the Automatic Date & Time feature, you’re making sure that the Samsung Galaxy S9 or S9 Plus will know how to set this info according to the Location details. If you’re not a fan of letting the smartphone to handle things automatically, there’s also the option of setting the time and date all by yourself. No matter what you choose, the point is that this information must be accurate in order to make the “Your connection is not private net:: err_cert_authority_invalid” notification disappear.


To clear the browsing data from your internet browsing app

  1. Launch the app and its Settings menu, from the 3-dot icon;
  2. Stop by the section labeled as Advanced and tap on Privacy;
  3. Select the field that says “Clear browsing data”;
  4. Make sure you tick the boxes of all the options listed in there and use the Clear button to initiate the process.

After taking these steps to , again, chances are that the “connection not private” error will no longer appear. Considering how harmless this action is, it is certainly worth the effort of trying it.


To move to a private wireless network

  1. You must swipe down the Notification Panel once again;
  2. Head to the Settings menu, at Connectivity;
  3. And identify a private network whose login credentials you know;
  4. Tap on it and connect to that private Wi-Fi network.

If you don’t have this option, you can also try to use the mobile data alone. What matters is that you’re not using a network that the Android device might seem as potentially insecure.


To factory reset your Samsung Galaxy S9/S9 Plus

  1. Back up all the data you care about;
  2. Then, open the Settings menu;
  3. Select the Backup & Reset tab;
  4. Tap on Factory Data Reset;
  5. Hit the Reset Device entry;
  6. Confirm that you want to factory reset;
  7. Wait for the factory reset process to finish.


When the phone restarts, you’ll have to configure it like you do with any other new smartphone. And if you’ve taken the time to create a backup in advance, you will now be able to restore it and get your data back on the smartphone. It’s a drastic measure, we’re aware of this, but you’ve tried the easy options already. Since you cannot seem to identify the cause and nothing seems to work, you have two choices: to ignore it, like we already said, at your own risk; or to remove everything, the problem included, hoping that it will solve it.


Normally, after a factory reset, the Samsung Galaxy S9 or S9 Plus will no longer display the Connection Not Private Android error when you’re using the internet browser. Go ahead and test for yourself, we’re anxious to know which one of the solutions suggested in this tutorial particularly worked in your case!

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