If you are now using the latest Map Viewer (formerly Beta) and can not find the Refresh Interval setting (it is apparently coming), then this solution worked for me.
Much appreciated!
Los miembros registrados pueden publicar, seguir actualizaciones y más. ¿Nuevo aquí? Regístrate gratis.
Find useful guides, FAQs, and documents to help you navigate and make the most of Esri Community.