This is an archive related to a previous version of Esri Maps for SharePoint. If you need the current version go to http://doc.arcgis.com/en/maps-for-sharepoint/.
Esri Maps for SharePoint version 3.0 and later works with ArcGIS Online or Portal for ArcGIS. With the release of Esri Maps for SharePoint 4.0, support is included for connecting to Portal for ArcGIS in a disconnected setting such as when your internal network is behind a firewall. This functionality is not designed for, and does not support, working offline and reconnecting and syncing information.
In a disconnected scenario, set the ArcGISConnection (in the Configuration Settings list) to connect to Portal. For example: