How to fix WiFi authentication issues on Android phones

The problem of WiFi authentication on  Android phones  is quite common and it always causes you to interrupt while doing work. Refer to the article below to see how to fix the error!

1. Reboot the phone

Hold down  the phone's power button  > Select  Restart .

2. Activate flight mode on and off

Drag the navigation bar  from top to  bottom> Select the Airplane mode icon  .

3. Forget about the currently connected network

Step 1 : Select  Setting  > Select  Connections .

Step 2 : Select  WiFi  > Select the  WiFi that you are having a connection error .

Step 3 : Select  Forget .

4. Reset Network Setup

Step 1 : Go to  Settings  > On the search bar, type ' Reset network settings '> Select  Reset network settings .

Select  Reset settings .

5. Restart the Router

To restart the  router , you will press the OFF switch, then wait a few seconds to press the ON switch.

The router directly affects your WiFi, the error may be caused by the Router problem, not your  phone  . To understand more about Router, immediately refer to the article:  What is a Router? The working principle and function of the Router are detailed .

Turn on / off the local Router again

6. Check the WiFi password

View WiFi passwords

Sometimes your phone is saving old WiFi password while that WiFi has changed a new one, so you should check the password to see if you entered it correctly or not.

Let's refer to the article:  How to see the wifi password on Windows 7, 8,10 and MacBook computers  to check this password on your  computer  to see if you are entering it correctly!

Check if the WiFi password is correct

How to change a WiFi password

Changing WiFi password can help you fix WiFi authentication problem because when the WiFi will be reset, try this.

Change WiFi password to fix error

7. Set up a static IP address

Step 1 : On the Windows computer, type the key combination  Windows + R  > Type ' cmd '> Select  OK .

Access to the cmd window

Step 2 : Type ' ipconfig / all '> Press  Enter  > Write down the parameters of 3 types:  IPv4 Address ,  Default Gateway  and  2 DNS Servers .

Look up the required parameters

Step 3 : Continue typing ' ping + IPv4 Address '> Press  Enter .

- If the system shows the Ping time as shown, it means that a device using this IP address is connected to the network.

- If " Destination host unreachable " is displayed , it means the IP address is available and you can use it to connect your device.

Ping the IP address

Step 4 :  Swipe  down from the top navigation bar  > Long press the WiFi  item  > Press and hold the  faulty  WiFi > Select  Manage network settings .

Go to WiFi management

Step 2 : Select  Show advanced options  > Select  Static  > Enter  IP address  > Enter  Gateway  > Enter  2 DNS  > Select  Save .

Reset parameters for static IP

8. Restore factory settings

Note :

- When restoring factory settings,  the data on your phone will be lost  such as messages, apps, photos, contacts, . because your phone will restore to its original condition.

- Only do this when tried other ways and still cannot fix the error.

Step 1 : Select  Settings  > Select  General management .

Go to general settings

Step 2 : Select  Reset .

Hopefully after reading the instructions you can reconnect to the WiFi and continue your work. Thank you for watching, see you next time!

Marvin Fry

Update 08 April 2021