I am trying to setup a collector app for a proof of concept. I have created a point feature service that I can successfully edit through the ArcGIS online map interface. When I try to view my map in ArcGIS online explorer or collector the point layer doesn't display. I can access my service with both types of url:
To answer my question and help others in the future.........I had my networking security group add my url string to the reverse proxy. After that I could change my url string to what was needed to hit my service from outside the intranet.