User1167734619 posted
Built and debugged OK my ASP.NET web app on Visual Studio 2017 Pro.
Published it to my IIS on Windows Server 2016 on my AWS EC2 VM.
But when I browse from IIS > Sites > my site > Manage > Browser … I get "error 404 - file or directory not found"
project start file is Default.aspx and that's what is set in IIS > my site > defaults
I set projects security permissions to "Everyone" full access.