Im attempting to set up a collaboration between ArcGIS.com and portal 10.6. I am an Early Adopter for ArcGIS.com, so the collaboration item shows up in the in ArcGIS.com menu. I can create my invitation in ArcGIS.com, however, when time comes to accept my invitation (in portal), I get this:
Failed to validate SSL certificate for https://<myagolsite>.arcgis.com.The certificate authority that issued the SSL certificate needs to be trusted by Portal before the invitation can be accepted. See Configuring the portal to trust certificates for more information.
I would expect anything from ArcGIS.com to automatically be OK with portal. However, I went through the process and exported out added CA cert from chrome to my PC from ArcGIS.com starting with the root, then two intermediate certs. I then added these certs to <portal>\portal/portaladmin/security/sslCertificates/. However I still get the same error above where portal fails to validate certs from ArcGIS.com.Any ideas what is wrong and how this could be sorted? Im pretty excited about portal-agol collaboration so would like to get this going.