Warning notification: No online access to folder

If you delete a Toplevel Folder via webinterface/ via another client or are removed as a member from a Toplevel Folder, the beneath shown warning notification will appear on your client. In this case you have to either:

Click on the warning notification located in the upper area of the client and select Resolve after the tab Problems is unfolded. (The local files of the Toplevel Folder will not be deleted by this process!)


Right-click on the affected Toplevel Folder and select Stop sync. Afterwards, a window will open up and you have to select Delete local meta-data before clicking on Stop sync. If you want to delete the local files of the Toplevel Folder, you have to select the second option, Delete local files, and then click on Stop sync.

How secure is FAUbox ?

We take the utmost care to ensure FAUbox is secure. All transfers are encrypted using AES and the access to the FAUbox website is secured using SSL. These are the same standards that banks and the military use to protect their data!

Can I access FAUbox on my mobile device?

To get some information to download a version of the client for your phone please read our guide for mobile devices.

How can I adjust my client to synchronize not all folders anymore but just a special selection?

You can stop the synchronization of a folder in the client anytime. In order to do so you just have to right-click on the folder you don’t want to synchronize anymore. Then select Stop sync to stop the synchronization with other clients or Stop Online Backup to stop the synchronization with the server.

The client is set by default to synchronize new folders immediately. If you want to stop this automatic synchronization of new folders you can change this in the client settings:

  1. Open the client and click on Preferences.
  2. A prompt that will show you the setting should open up.
  3. Make sure that at Preferences -> General the check box for Show advanced options is selected (if changing this setting the client needs to restart)
  4. Than click on Advanced. If you don’t want to save new folders in the cloud automatically, uncheck the check box. If you do so, from now on you need to click on each folder separately to start the synchronization.
  5. In the Expert Setting there are two other options to stop an automatic synchronization by unchecking the check box for   Auto-detect new folders in the folder-basepath and Allow sync of folders located outside the folder basepath to enable theses functions.
  6. Make sure to click OK at the end so that your settings will be saved.


How can I set the client not to start automatically when starting the computer?

You can enable this function directly after the installation but also afterwards when the client is already installed. To change the setting:

  1. Open the client and select Preferences.
  2. Click on General.
  3. When you uncheck the check box at Start behavior for Start on Windows log in you can enable this function.
  4. Make sure to click OK at the end so that your settings will be saved. Afterwards you need to restart the client.


The synchronization is stuck at 99 %, the files are not the same on all my devices and the hourglass doesn’t disappear, what can I do?

  1. Copy the Log Files  and send them to us.
    • C:\Users\<User>\AppData\Roaming\FAUbox\logs
    • for MAC, Linux ~/.FAUbox/logs
    • please just the last day, not all!
  2. Stop the synchronization that is stuck and restart the client, in most cases the client will run flawless afterwards.
  3. If this did’t work try to change something in the folder such as up- or download a file of change something in a file. In most cases the new synchronization process will run flawless afterwards.
  4. Restart the client this will help in most cases.


How can I restore deleted files ?

There are two possibilities to restore deleted files:

  1. Either by using the desktop client: please read Restoring file versions.
  2. or the web portal:please read Restoring deleted files.


How can I delete files or folders?

To delete a file in a folder:

  1. Select the folder the file is in.
  2. Right-click on the file and select delete.

To delete a folder:

  1. Select the folder you want to delete.
  2. Right-click on the folder and select Stop sync in the prompt.
  3. Make sure to mark the check box for  Stop local synchronization. 
  4. The folder will no longer be synchronized and is now shown in a grey colour.
  5. Right-click on the grey folder and select Leave Folder/Delete Folder.
  6. A prompt will open, select Delete to confirm your choice.
  7. (Haken) Your folder has been deleted.

(Info) If you want to restore a grey folder you just have to click on the folder and select Next in the prompt that will open up. Your folder is restore now. Once your folder is deleted completely it is not possible to restore it.

How long do I have access to FAUbox? What happens if I am no longer student?

The access to FAUbox requires a membership to the FAU. Therefore, only students or staff of the FAU can use it. Before your access to FAUbox expires, you’ll automatically get informed so that you’ll have enough time to save you data. Using you IdM-Portal you can also check for how long you’ll still have access to FAUbox. For students theirs access to FAUbox automatically gets renewed with each semester registered at FAU. With no more membership to FAU anymore, you also no longer have access to FAUbox.

The Login-Assistent shows a notification saying “Connecting to server, please wait” which does not disappear. What should I do?

When starting the client do not immediately click on “password required” but wait until “Connecting…” changed to “Loggin in…”. Afterwards click on “password required” to login. If you click on “password required” before, it might take a while until the client connects properly and therefore until you can use it.

Is there a file-backup?

Yes, all the servers are equipped with a file-backup over the duration of  3 months.

I have created a new folder using the FAUboxCloud web interface, but i cannot see it. What can i do?

To speed things up and conserve communications bandwidth, browsers attempt to keep local copies of pages, images, and other content you’ve visited, so that it need not be downloaded again later. Occasionally this caching scheme goes awry  making it necessary to bypass/refresh the cache, thus forcing your browser to re-download a web page’s complete, up-to-date content. This will also fix the problem of the FAUbox Cloud-Interface not showing recently created folders.  Please use the following key-combinations to refresh your browser’s cache:

Mozilla Firefox On Microsoft Windows:
Ctrl+F5 or Ctrl+Shift+R

On Mac OS X:
+Shift+R (Reload page and rewrite cache)

Internet Explorer Hold the Ctrl key and press the f5 key.
Opera Ctrl+R or F5
Safari On Mac OS X:

On Microsoft Windows:

Konqueror Ctrl+R
Google Chrome On Windows, use: Shift+F5
On MAC OS X:  Hold both the  Cmd and Shift keys and press the R key.
On Linux: Ctrl+f5
Camino Ctrl+R

The FAUbox tells me that my account has been blocked due to exceeding the 50 GB limit, but the size of my files is way smaller. What can i do?

The FAUbox keeps older versions of your files on the servers. With time, they tend to get big in size, even though you cannot see them. By clearing the old file versions, you can free up a lot of space in your FAUbox. You can find a detailed instruction on how to do this by visiting the following link:

I`m going to leave the FAU, but i have folders in the FAUbox that are still needed. How can i transfer these folders to another user?

To transfer folders to a specific person in the FAUbox:

  1. Click on Folders.
  2. Click on the folder you want to transfer to someone else.
  3. Click on Manage Members icon .
  4. Invite the specific person to the folder.
  5. Change the permission for the member of the folder whom you want to transfer the folder to by clicking on the permission itself and selecting “Owner” from the drop-down box.
  6. That person now has owner permissions. The user can do everything with a folder. Furthermore the size of the folder will be counted on the quota of this member on the cloud servers.

How can i share my FAUbox files with external persons?

There are two ways to give external persons access to your FAUbox files:

  1. You can create links to your files and folders and send them to external persons via e-mail, chat programs, etc. (Guide)
  2. You can invite external persons to the FAUbox and directly share your folders with them. (Guide)

The person i invited to one of my folders cannot see the folder. What should i do?

There are two possible reasons for the invited person not being able to see your folder: either you entered his name/e-mail address/username incorrectly, or you did not click on the suggested entry in the drop-down-list during the invitation process.  Please make sure to click on the entry in the list of suggestions, which should appear after typing a few characters! If the invited person is still unable to see your folder, please contact the FAUbox-Support-Team.

How do I make the pause period dialog of the client visible again?

It can be very convenient to stop the client’s activity without having to stop it completely. The “Pause” button is available for this purpose, which allows you to select the desired interval.

However, If you set the option “Never ask again“, it will automatically disable the dialog for any future pauses.

To make the pause period dialog visible again, you have to set the option “Ask about the length of the pause” under Settings > Warnings & Notifications.

How can I be sure that all my changes have been saved correctly in OnlyOffice?

There are currently storage problems in the OnlyOffice online document processing in some cases.  For this reason, after editing a document, you should first check the FAUbox for the “date of last changes” to see whether everything has been saved. Only afterwards can the browser window of OnlyOffice be closed securely without fear of losing any data.

How do I know, if I am a guest with quota (VIP) or if I am a guest without quota?

Guest with quota (VIP)

Guest without quota


Invitation error

When I invite a user, I get this error message

”It wasn’t possible to invite User XY.”

This error message appears if the “Send invitation e-mail” checkbox has not been checked and the account does not yet exist. To avoid this error warning, always check the box before continuing with “Add”. So the user is added to the folder and also gets an invitation mail to the folder. The following steps will explain how to do it.

1. Select the folder to which you want to invite the user.
2. Click on the “Manage folder members” icon.
3. For “Username/E-Mail” enter the name (for internal users wait for the suggestion list and then click on the name)
4. Select Permission
5. Check “Send invitation e-mail”
6. Continue with “Add”

My client can’t connect to the server./ My client doesn’t synchronize. What should I do?

If the server rejects the authentication token and the client does not realize this, it will not be able to connect or synchronize successfully. If this happens, then:

  1. Close the client.
  2. Delete the data:
    Windows: %appdata%\FAUbox\PowerFolder.config
    Linux/Mac: ~/.FAUbox/PowerFolder.config
  3. Restart the client and log in.
Please note that depending on the data-volume it could take some time for all the data to be synchronized. Furthermore the authentication token has an expiry date and has to be renewed afterwards.

I receive the message that the FAUbox wants to take screenshots on my computer. What should I do?

These are security regulations that Apple has implemented for the first time in the macOS Catalina version of the desktop operating system.

Certain apps, such as PowerFolder, can take screeshots using QuickTime, and then share it with others using PowerFolder. However, this requires the consent of the user, who receives this message accordingly and can decide whether to use or refuse the function.

We recommend you not to allow FAUbox to take screenshots by clicking on “not allow”.
This message should only appear once when the FAUbox is started for the first time.

My browser is working (very) slowly and I receive error messages (time outs). What should I do?

We noticed that working with the FAUbox is faster via Google Chrome (64-Bit) than via Firefox (32-Bit) which is usually used at the FAU. This also reduces the number of time outs happening.

Android client crashes at login (Android 9 and 10) What can I do?

There is a patch for the Android 9 and 10 devices thatyou can download to fix the problem.

Will it count towards my FAUbox storage space if anotherFAUBox user shares one of his folders with me?

No. If a user shares one of his folders with other users, this storage space will only count towards the quota of the sharing user. You can find a complete explanation here.

How do I delete the FAUbox from my computer without damaging the data on the server?

The procedure depends on whether you want to delete the data locally or only the synchronization. – If you want to delete the data, it is quite fast. You close the client, uninstall it and then delete the FAUbox base directory (c:\Users\<your user number>\FAUbox” under Windows ,”~/FAUbox” under MacOS/Linux and “Files/FAUbox”under IOS ). and the directory “%appdata%\FAUbox” onWindows and “~/. FAUbox” on MacOS/Linux. A reboot also cleans up the last remnants in the dll files.

If you want to keep the data and the meta information (old versions etc. ) you do not bother, you can simply stop the client and uninstall it afterwards. If you want to keep the data, but want to get rid of the meta information, then you have to right click on each folder in the FAUbox-Client, select “Stop sync” from the context menu, then click on “Delete local meta data” and then click on “Stop sync”.

When you have done this for all folders, all data on your computer is freed from its meta data and the client will not synchronize anything. All folders are displayed in gray. Now stop the client and uninstall it. Now delete the directory “%appdata%\FAUbox” under Windows and “~/. FAUbox”; under MacOS/Linux. After a reboot your computer is “FAUbox-free”.