NetIQ Secure Configuration Manager 5.9.1
[Microsoft][ODBC SQL Server Driver][DBNETLIB]SQL Server does not exist or access denied error received when logging in from a console on a remote machine.
Create or edit a Windows host file on the machine where the console is installed. Add the IP address of the machine where core services is installed. The machine will need to be rebooted for this to take effect.
In this case core services was installed on a workgroup machine and the console is installed on a remote machine that has no access to the core services machine.