Can't connect ArcGis Pro to Portal.

[JordanBaumgardner]

I'm trying to publish a 3d Scene from ArcGis pro. When I attempt to add my portal it fails.

I installed ArcGis Server 10.4 and added a data source.

I installed WebAdaptor.

I installed ArcGis Portal 10.4 and configured WebAdaptor

https://xx.xxx.xx.xxx/arcgis/home/  works.

https://xx.xxx.xx.xxx/:7443/arcgis/home/  works

from ArcGis Pro I add the portal

https://xx.xxx.xx.xxx/arcgis 

it says: "Unable to add the portal. Please make sure that the specified portal is up, running and the URL is correct."

as does /home

If I add the :7443 it works kinda - it registers but if I log in it simply does nothing.

--- If I give it the wrong creds - it says they are the wrong creds. 

--- If I give it the correct creds - the pop-up login window closes and the portal entry in the list box says I need to log in.

Thanks in advance.

[JordanBaumgardner · Accepted solution]

I enabled Anonymous auth in IIS Manager for the web adaptor and disabled windows auth. This allowed me to connect with and with out the :7443 port url. It must have been re-routing back through the web adaptor.  I think I have mixed modes. My ArcGis Server is ArcGIS Server Built-in as is Portal but IIS was all Windows Auth. I'll align them all.