It is probably the first thing you need to check if you are getting synchronizing issues with Dropbox. For obvious reasons, Dropbox requires a valid internet connection to synchronize files. Otherwise ...

With the advancement in cloud services, many people and businesses are now using Dropbox and Google Drive because they help them organize work, save or store, and then share data with their work teams ...

AeroFS provides Dropbox-like seamless sync without using any servers, so you can sync unlimited amounts of data. For years now, Dropbox has been pretty much the gold standard of cloud-based file sync.