topic Unable to access domain &quot;A server with specified hostname could not be found&quot; in ArcGIS Web AppBuilder Questions https://community.esri.com/t5/arcgis-web-appbuilder-questions/unable-to-access-domain-quot-a-server-with/m-p/1026258#M20324 <P>I am using&nbsp;arcgis-web-appbuilder-2.19 and tried to start the application but somehow it refuses to connect to the AGOL server. What is going on?<BR /><BR />The only thing I keep getting is&nbsp;"A server with specified hostname could not be found"</P> Fri, 12 Feb 2021 13:49:40 GMT RobinHummel92 2021-02-12T13:49:40Z Unable to access domain "A server with specified hostname could not be found" https://community.esri.com/t5/arcgis-web-appbuilder-questions/unable-to-access-domain-quot-a-server-with/m-p/1026258#M20324 <P>I am using&nbsp;arcgis-web-appbuilder-2.19 and tried to start the application but somehow it refuses to connect to the AGOL server. What is going on?<BR /><BR />The only thing I keep getting is&nbsp;"A server with specified hostname could not be found"</P> Fri, 12 Feb 2021 13:49:40 GMT https://community.esri.com/t5/arcgis-web-appbuilder-questions/unable-to-access-domain-quot-a-server-with/m-p/1026258#M20324 RobinHummel92 2021-02-12T13:49:40Z