If you’ve encountered the "15s-du4015TU authentication failed" message, you’re likely looking for a way to resolve this issue and regain access to your device. Here’s a simple guide to help you ...

This issue, one in a short series of primers on deploying wireless LAN security, will begin discussing the task of selecting an authentication method to use in your Wi-Fi security scheme. WLAN ...

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 ...