it is always possible that I have something wrong in config but they do see each other in the devices and my sync and as soon as I recreate the sync on the remote they always sync properly. It just hasn't ever re-started when all the files get deleted and then replaced I added the sub folder on the server as suggested and this was automatically synced, the external app then created 15 files in the main folder on the server and one in the sub folder The 15th file in the main and the one in the sub folder then got automatically synced to the remote without me doing anything I then re-created the sync folder on the remote with the same information and it read the complete list and started syncing all of the files, next week I will try splitting the set into smaller files so that I get more of them and see what happens automatically then Maybe the problem is that I get no change in the contents for a week and then the complete set changes