Configuration of SharePoint 2013 WFE Server

I have installed sharepoint 2013 in as (2 WebFrontEnd, 2 Application)
now when I check using powershell, (get-spserver | ft name, role) it gives me back that all the servers are application servers!
now I found that I can change the server role by powershell,
$a=get-spserver | ?{$_.name –eq “ServerName”}
$a.role = “Web”

Note: while running the configuration wizard, in the advanced settings I checked "Do not host"

but obviously that was not enough.

what do you think?? is there any other way of doing the same?? or only stopping services is enough?

badly looking for help :)