If our authentication service is temporary not available, you receive the following error message:
If you receive the error message for a longer time or the error message appears although another computer is online, you should check the following steps:
If this doesn’t help please install SYNCING.NET again. Download SYNCING.NET and install it over your existing version. All settings, "Sync Folders" or "Outlook Groups" and license keys will be retained. Then please check point 2 again.