A common reason for getting CHAP authentication failed messages on your router is wrong settings. Especially after a power-surge which can cause routers to lose their settings. Check your username and password on the router are correct and that the username has not been reset back to factory defaults. Ensure the router settings are also correct.

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There are two possible solution of the authentication problem 1.First you have to try forget network method.Tap the connected wifi network and click on forget network then you try to reconnected it will solve you problem and if the above didn’t wo

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How To Fix Galaxy S3 WiFi Authentication Error

Jan 20, 2019 6 Tips to Fix Android Wi-Fi Authentication Problem – iMobie Reset Wi-Fi Connection. Step 1. On your Android device, go to Settings. Step 2. Find Wireless and … Internet and WiFi Support and Help Center | Optimum Need help with Optimum Internet? Troubleshoot connection and speed problems, access your Optimum email, learn about WiFi, locate your MAC address and more! 500 Internal Server Error (What It Is & How to Fix It) Feb 28, 2020