"Layer Not Loaded" (a server with the specified hostname could not be found) error message appears while opening map in Collector. I have an editable SDE feature class published as a feature service through ArcGIS Server. Then I created a map through AGOL for use with Collector, using this feature service. When I go to open the map in Collector the error message appears and I can not view my data layer. Any help would be appreciated, Thanks!
The full error message:
Layer Not Loaded
Unable to load layer (___) from (___).
A server with the specified hostname could not be found.
If your server feature service is inside your firewall, you need to make sure mobile device can access it via VPN. Also check URL of feature service in your webmap and see if anything special.
Thank you for the help! It was an issue with devices outside of my network not being able to access the URL. After contacting tech support, I received help with using Web Adapter and changing part of the URL to be publicly available.