Deploying a fresh set of 2012 Applications for a demo later this week I managed to “break” the unbreakable App Controller installer.
Add Credentials and Service Port
Select SQL Server and Boom Error
A network-related or instance-specific error occurred while establishing a connect to a sql server.
SQL Running , Check
Firewall Allowing SQL , Check
Login failed. The login is from an untrusted domain and cannot be used with Windows authentication. [CLIENT: 10.1.1.35] <VMM01
User Error : the domain administrator used for install have been renamed and no logon / logoff was performed on the VMM Server
So back to App Controller being unbreakable