I am trying to apply a third-party wildcard cert to a RDS server farm. The .pfx is imported successfully for the RD Connection Broker roles, but gives an error "Could not configure the certificate on one or more servers..." when I apply it to RD Web Access. In the Event log, this generates event ID 20480 "Property page: Manage certificates update failed: due to Exception Failed to enumerate server SSL certificate information."
This is an internal farm, with no RD Gateway server, 1 Connection broker/Licensing/Web Access server, and three additional session hosts.