I am trying to install DotNetNuke, I created a virtual machine with Window Server 2008, and followed the video series to install DotNetNuke.

When I run the InstallerWizard I am getting this error: "Connection To The Database Failed"

Note that when I didn't find the account iss apppol/dnndev.me so I added my virtual login account as a database owner, I even created an account but still nothing.

I am frustrated with this, I've spent 3 days trying to solve it, as I don't know a lot in IIS.