Update the map provider URL inside the data source XML file. Windows Firewall is preventing outbound network requests.
Click to fetch the map directory, then confirm by clicking OK. Portable Basemap Server V3.1.zip Download
: Generates a unique URL that can be added as a "WMTS Server" in ArcGIS projects. Downloading the Software Update the map provider URL inside the data source XML file
If you are a web developer, you can use the WMTS URL from PBS directly in any web mapping library that supports WMTS, such as Leaflet (using a WMTS plugin) or OpenLayers. This allows you to create completely offline web mapping applications that run on a local network. Portable Basemap Server V3.1.zip Download