Can't sign into LEB2

• I Cannot Access LEB2 on Web Browser. It Says "Sorry, We Are Not Able to Locate Your Username in The Database" What Should I Do?
• I Cannot Access LEB2 on Web Browser. It Says "Your Connection Is Not Private" What Should I Do?
• DNS Changing for Android
• DNS Settings on Your Devices
• DNS Changing for IOS (Iphone and IPad)
• DNS Changing on MAC
• DNS Changing on Windows
• Can’t Log In to LEB2
• Clear browser's cache to get the latest version of the system
• Examining whether your device is connected to a proxy server