We have deployed ArcGIS Enterprise 10.9 on AWS to conduct some Utility Network testing. Our issue is that when we try to log in to our portal via ArcGIS Pro we are getting nothing. We are entering the correct usernames and passwords because when we enter incorrect ones we see the error as well as a log entry on the portal. We have used this instance for prior testing on ArcGIS Enterprise 10.8.x without much trouble. When we first try to log in on a new machine, Pro will display a certificate warning, but no matter what we select (add cert, continue, etc.) we aren't able to log in. We are using an Amazon signed certificate created from their Certificate Manager service and have it assigned to a load balancer that is forwarding to our EC2 portal instance. We are able to connect and log in without any errors or certificate issues via a web browser so we are fairly confused at this point.
