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Sometimes, the Sony Xperia XZ2 displays the Authentication Problem message when ever you try to connect to a Wi-Fi network. This sort of error message can possibly be caused by several places. So, so that you can connect properly to the Wifi network with your Sony Xperia XZ2, we decided to produce this guide. So we will observe together what to do and where to look to solve this issue of Wifi authentication. We will see at first of all what you have to do on the Sony Xperia XZ2. Finally, we will see what it’s important to do and check on your Wifi box.

How to proceed when the Sony Xperia XZ2 has an authentication problem on the Wifi network

Forget the Wifi network on your Sony Xperia XZ2

In cases where the Wi-Fi network to which you desire to connect has been changed since your last authentication, your Sony Xperia XZ2 may display the text: Authentication or authentication error . In cases where the problem comes from there, the solution is quite simple. Just forget about the Wifi network in your Sony Xperia XZ2. To accomplish this, go to the settings of the Wifi network and keep pressed on the network in question. You will after that have the option to select the option: Forget this network . When it’s completed, you can try again to connect to the Wifi network. If perhaps the problem is not fixed, go to the next step.

Press the box button

Whether your box is Orange, Bouygues Telecom, SFR or Numéricable, it may possibly happen to have a problem of authentication Wifi on the Sony Xperia XZ2 because the box is not in Synchronization mode . If you would like to activate the synchronization mode of your box, it’s very simple. You should find a synchronization button to press. When this is completed, a light will normally start blinking. You can after that try to reconnect to the Wifi network with your Sony Xperia XZ2. In cases where it still doesn’t function, go to the next trick.

Retype Password

Sometimes the authentication problem originates from the solution you type the Wifi network password. Indeed, it’s sometimes subtle to type a password Wifi on its Sony Xperia XZ2. We consequently advise you to try all the following possibilities:

  • Type the code without spaces or hyphens
  • Type the password in uppercase
  • Type the password in lowercase

Restart your box

As in lots of pc problems, the solution is occasionally very simple. Indeed, 80% of the pc problems are solved by restarting the machine. We therefore advise you to restart your box and your Sony Xperia XZ2. Then try to reconnect with your Sony Xperia XZ2.

Check box settings

In cases where none of the previous solutions did function, the problem may be found to be on the box of your provider. It will consequently be important to go in the parameters of the box and to check in the event that the system of key is in WPA / WPA2 . In cases where this is not the case, select this option. Then try to connect your Sony Xperia XZ2 again to Wifi. In cases where the authentication problem persists, we highly recommend that you contact your service provider or a telephone retail store.