There must be at least one ODBC connection configured on the machine that is running the Client installer. If there are no ODBC connections configured, a Failed to enumerate data sources error is encountered and the Client installer cannot be run.
Tip:
The names of all configured ODBC connections for the workstation are available in the data source drop-down list when logging in to OnBase. When configuring a connection, it is a best practice to use a name that makes sense to the data source it refers to. For example, OnBase Production DB instead of DB1 or OBSERVER.