Hello @Irish84 ,
Thanks for reaching out and sincere apologies for the delay on this. We are constantly trying to reduce our answer time and in coming days you will see a significant improvement here. So we appreciate you posting your future queries here.
You just have to open port 80/HTTP from firewall only on these URLs not your internal app URL, because the connector uses these URLs to verify certificates.
HTTP Error 403.0 - Forbidden is more related and caused due to the user is not authorized to access the application. This error can happen either when the user is not assigned to the application in Azure Active Directory, or if on the backend the user does not have permission to access the application.
In addition to that, you may have problems with your application rendering or functioning incorrectly without receiving specific error messages. This can occur if you published the article path, but the application requires content that exists outside that path.
For example, if you publish the path
https://yourapp/app but the application calls images in
https://yourapp/media, they won't be rendered. Make sure that you publish the application using the highest level path you need to include all relevant content. In this example, it would be
http://servername/ instead of
Here is detailed troubleshooting guidance:
Hope this helps.
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