I just installed an update to Esri Maps for Office (it is not at version 4.0.0.358) and my office version is 2010 32-bit
It connects to my portal (version 10.3). When I click the sign-in button on the ribbon in PowerPoint or Excel, I get the following error:
"Unable to start ArcGIS Maps for Office. The Portal at <my portal> is not configured to support ArcGIS Maps for Office. Refer to the documentation for further guidance"
Maps for office was working fine before, so anyone have any ideas what's going on? It has nothing to do with my installation of office version because if I change the ArcGIS Connection URL to an AGOL endpoint instead of my Portal endpoint, everything works fine.
