You have to activate the Remote Interface via the Standalone Configuration Manager first. Make sure that the remotegui and gwt plugins are installed correctly.
The i‑net Designer is the default report designer for i‑net Clear Reports which can be used as a standalone application without installation. There are additional Ad Hoc clients for quick reporting results that run in your browser.
The Remote Designer is a PLUS Version feature only. To use Ad Hoc Reporting you have to activate it via the Configuration Manager first. Make sure that the Ad Hoc plugin is installed correctly.
Get started now and have a look at a Report Sample in the Report Viewer (Link below).
To open your own reports, you can call for example: http://report.dpe.go.th/?report=startpage/start.rpt