5 ways to fix Wi-Fi authentication problems on an Android when your device won't connect to the internet

5 ways to fix Wi-Fi authentication problems on an Android when your device won't connect to the internet
insider@insider.com (Dave Johnson)
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There are several ways you can troubleshoot an Android device that's experiencing Wi-Fi authentication issues. Crystal Cox/Business Insider
A quick fix to Wi-Fi authentication problems on Android is to toggle airplane mode on and off, or "forget" the Wi-Fi network and reconnect to it. 
You might sometimes encounter an authentication error while trying to connect to Wi-Fi with your Android device even if it's a network you have used before and your password is correct. 

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