Do you see an authentication error when connecting your Android device to a Wi-Fi network? Unfortunately, this is a fairly common problem. It can also happen when you connect to a network that you have used in the past.
Fortunately, there are several ways around this and successfully connect your phone to a Wi-Fi network. Check out these fixes below.
1. Activate airplane mode
An easy way to avoid Wi-Fi authentication errors is to turn on airplane mode on your Android phone . When you do this, your phone disconnects from all the networks it is connected to.
You can then turn off airplane mode to reconnect to your chosen Wi-Fi network. There is no guarantee that this method will fix the error, but it only takes a moment, so it’s worth a try. Here’s how to do it:
- Launch the Settingsapp on your Android phone.
- Tap the option that says Wi-Fi and Internet. This option may have a slightly different name depending on your Android device.
- Turn the switch on the airplane modeto the position of power .
- Wait about a minute, then return the switch to the offposition .
Hopefully your phone should now connect to any nearby saved Wi-Fi networks. To access Airplane mode faster in the future, swipe down from the top of the screen twice to access the Quick Settings panel and tap Airplane Mode .
2. Check the Wi-Fi password
An authentication error is usually the result of entering the wrong Wi-Fi password. If you are not sure what your password is or if someone has changed it, you will need to find the correct password for your wireless network.
If you don’t manage the network, ask someone who knows the password. If this is your home network, you can go to the router’s settings menu and find the password yourself:
- Open a browser and access your router’s configuration page by entering your IP address. This is usually 168.1.1, but it varies by device. Enter that address in the address bar and press Enter . If that does not work, see our FAQ about routers for beginners to get help.
- Your router will ask you to enter your login details, which are different from the password you use to log into the network. If you have not changed them from the default values, it is often admin/ admin or admin / password . Visit com to find the default if you don’t know it.
- After logging in, click Wireless Settingsin the list of options. This could be called something else on your router, but you must recognize it as similar.
- Click on Wireless Securityin the left sidebar and you will find a field called Security Key in the right pane. This field contains the password for your Wi-Fi network.
- Enter the newly found password on your Android phone and it should connect to the network as usual. If you can’t see your existing password, change it to a new one and enter it on your phone.
If you can’t use the above method, you can find your Wi-Fi password using Windows 10 .
3. Restart your Wi-Fi router
Wi-Fi routers can sometimes experience hiccups. When this happens, the router can interrupt the connection of your devices, prevent new devices from connecting to the network, and have other problems.
Your authentication error could be the result of a router not working properly. Fortunately, fixing it is quite easy. Just turn off the router by unplugging it, keep it off for at least a minute, and then turn it on again.
The phone should connect to the network without errors.
4. Forget and reconnect to the Wi-Fi network
Sometimes removing the Wi-Fi network and reconnecting it resolves authentication errors. As long as you remember your network password, this is simple to do:
- Open the Settingsapp on your phone.
- Select the option that says Wi-Fi and Internetand tap Wi-Fi on the next screen.
- Find your Wi-Fi network in the list and tap the settings icon next to it.
- In the screenshot that follows, you will see a button that says Forget. Touch this option and the chosen Wi-Fi network will disappear from your device.
- Go back to the previous screen and tap on your network.
- Enter the network password and tap Connectto reconnect to the network.
5. Use a static IP instead of a dynamic one
Most routers use DHCP, which automatically assigns an IP address to every device on the network. Sometimes the DHCP function does not work as it should, which will cause problems with your network.
Wi-Fi authentication problems and IP conflicts are often the result of DHCP malfunctions. To fix it, you can assign a static IP address to your Android phone. This way, your phone will have its own default IP address and will not depend on the router to obtain an IP.
Don’t worry if this sounds a bit technical; it’s pretty easy to do.
- Access the Settingsapplication on your phone.
- Touch Wi-Fi & Internetand choose your Wi-Fi network from the list.
- Tap the pencil icon at the top to change the Wi-Fi settings.
- Select the Advanced Optionsmenu to display several new options.
- Choose Staticfrom the IP settings drop-down menu .
- In the IP addressfield , you must enter an IP address that is within the allowed IP address range and that is not in use. If you don’t know how to choose an address correctly, first read our guide to static IP addresses .
- Enter the IP address of the router in the Gatewayfield . If you don’t know, check out the previously connected router FAQ article.
- Leave the DNS fields blank to use the default values or enter 8.8.8in DNS 1 and 22.214.171.124 in the fields DNS 2 , if you want to use Google’s DNS. Then tap Save .
6. Reset the Wi-Fi settings on your phone
Incorrect Wi-Fi settings can cause authentication errors. If you’ve tried all of the above and still can’t connect, factory reset should fix the problem for you.
Android offers you the option to reset all network settings at the same time. When you do this, you will lose all your saved network data, such as VPN settings, saved Wi-Fi networks, and Bluetooth devices. You’ll need to reconfigure them later, so make sure you agree to the procedure:
- Open Settingson your phone and tap on System at the bottom.
- Select ResetOptions on the next screen.
- Tap the option that says Reset Wi-Fi, Cellular, and Bluetoothto reset your network settings.
Once the settings are reset, connect your phone to the Wi-Fi network as you normally would.
7. Update your Android software
If you haven’t updated your Android device in a long time, this could be the reason why you are seeing authentication errors on your phone. Newer versions of the operating system often fix errors from previous versions, so it is important to keep your Android phone up to date.
Here’s how to find, download, and install software updates on your device:
- Go to Settingsand tap on System at the bottom.
- Select the updatesof the system .
- If an update is available, you should be able to download and install it on your phone.
8. Reset the device to factory settings.
Regardless of the problem, if nothing else works, the last resort is to reset the phone to factory settings. This procedure erases all your data and settings stored on the device, so it will start from scratch when you are ready.
If you’re still experiencing Wi-Fi authentication errors right now, this nuclear option is your last resort. Be sure to make a backup of your phone safe before restoring it to avoid losing valuable data.
- Go to Settings> System> Reset optionson your phone.
- Tap the Erase all data (factory reset)option .
- After your device restarts, try connecting to the Wi-Fi network before customizing any other settings.
If that doesn’t work, you probably have a hardware problem with your device. Consider taking the phone to a repair technician.
Improve your Wi-Fi experience on Android
Wi-Fi related problems are quite common, but generally nothing to worry about. If your phone won’t connect to a Wi-Fi network for some reason, you have many ways to fix the problem.
And once connected, in case your phone has poor wireless performance, find out how to fix your smartphone’s slow network speeds .