We have iPads on slow/shaky internet. They regularly fail to sync and this is not entirely unexpected. We get the error message:
Unexpected response from MirrorSync server:
The message is blank after the colon as you can see in the attachment. I have instructed the users to "Report Bug" mainly so that you might get a log and be able to identify the actual cause of the failure for us.
Please let me know if I can provide more info. Thanks!