Box Sync 4.0 provides detailed user notifications if there an issue syncing a file or folder.
File transfer problems typically occur due to intermittent network issues. These problems can occur anywhere in the network and may be outside your control.
All devices with Box Sync installed.
Depending on the type of network issue, you may need to contact your administrator, IT department, or wireless/internet provider to resolve the issue. Once the network issue is resolved, retry the upload/download. Other issues can sometimes present themselves as network problems, such as a blank "Modified Date" or other unsupported value.