Attempting to subscribe to the VMware-curated Microsoft software repository by creating a subscribed Content Library using the following URL: https://vmc-microsoft-templates.s3-us-west-2.amazonaws.com/Images/lib.json will throw the below error:-
Unable to resolve remote library hostname:vmc-microsoft-templates.s3-us-west-2.amazonaws.comVMware Cloud on AWS
The client machine from which you are accessing vCenter does not have access to the URL: https://vmc-microsoft-templates.s3-us-west-2.amazonaws.com/Images/lib.json