Following these exact instructions for taking a map offline, I am unable to perform the map download operation in Collector (IoS). I have successfully:
Published a FS with Sync-Enabled;
Tested CRUD operations in the FS through SDE Direct Connect, FS Local-copy editing in desktop, Editing through Portal, Editing in collector WITHOUT taking it offline;
Created a map with the AGOL tiled base map and the FS layer per Take maps offline—Collector for ArcGIS | ArcGIS.
Have a valid and active AGOL for Organizations Account, as well as a Portal instance.
Upon selecting "Download Map" in collector, the following error occurs: Unable to Download the Map the operation couldn't be completed .(NSURLErrorDomain error -1001.).
The Map is on Portal for ArcGIS 10.2.2...the FS is hosted on a separate, and Non-Federated ArcGIS Server 10.2.2. As explained above, communication between all pieces here seem to work, and I can edit in every scenario EXCEPT for taking it offline. What could be the problem here?