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How do I resolve the "Cannot Connect to Database" error message?

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Answer

This error indicates that the installation setup program cannot connect to the database server you specified. A common cause for this error is entering only the machine name and omitting the SQL Server instance name.

To include the instance name, use the format "[machine_name]\[instance_name]" - for example, if you're installing on a local server in which both IIS & SQL are running, and the instance name is SQLEXPRESS (the name that express uses when installing), you would use "(local)\SQLEXPRESS". If the server is a remote server, you'd use the actual machine name.