Qnap Dropbox Sync

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Real-time sync of files for all your devices Simply install the Qsync Central app to use your NAS as a Dropbox-like private file synchronization server. The NAS will centrally store files and distribute them across all your authorized devices. QNAP sync with Dropbox via HBS3. When trying to perform a Two-way Sync with HBS 3 I get a message: 'The cloud storage provider has restricted this content and it cannot be accessed. Contact your cloud storage provider for details' There are no access restrictions on any of my folders as far as I know. Another example of QNAP's negligence here is with the HBS 3 Hybrid Backup Sync app. They actually had a backdoor account built into the application with a hard-coded password! QNAP says no hackers exploited this, but are you going to take their word for it? They freaking left hard-coded credentials in the application.

Before migration

  1. Let your team know about the migration and ask them to avoid changing files during the transition.
  2. Prioritize your files, and consider migrating active files that you use everyday before migrating your archived files.
  3. Consider moving your data in batches. Schedule the migration for overnight, on a weekend, or when your team is less likely to need access to these files.
  4. Make sure that your computer has enough space. Keep in mind that Dropbox keeps a copy of your files on your local hard drive by default.

Note: If your data is on an external drive connected to the server, you can move the Dropbox folder to the same external drive. You can also free up space on your local hard drive after migration with selective sync.

Migrating your data

  1. Install Dropbox on your server computer. Make sure you're accessing the server directly and are not logging in remotely.
  2. Sign in to the Dropbox desktop application with your Dropbox Business admin account credentials. An empty Dropbox folder will appear on the main drive of your computer.
  3. If your data is on a physically connected external drive and you do not have sufficient space on your internal drive, you can either:
    • Move your Dropbox to the external drive; or,
    • Sync files in batches and use selective sync.
  4. In the Dropbox folder, you can start setting up your folders.
  5. From the server computer, copy or move the folders that you would like to sync to Dropbox into the new folders you created.

Note: Make sure that you are continuously logged in to the server computer until the migration is complete. Don't log out, change settings, or power off the computer during the migration process. The desktop application only syncs when you're logged in. You can check the sync status at any time using the desktop application.

After migration

  1. Invite users to the shared folders they need. Once your team installs the Dropbox application and signs in, a copy of all the folders you shared will sync to their Dropbox folder. They can open these files just like any other file on their computer. Any changes that a team member makes to files will sync to Dropbox and any other members of the shared folder.
  2. Set shared folder permissions for your users. You can allow your team members to edit or view files in a shared folder.
  3. Remotely sign out of Dropbox if you are done with the initial transfer and do not want to continue using Dropbox on this computer.

Note: If you choose to continue running Dropbox on this computer, only share folders in this Dropbox folder through the Dropbox application. Using server functionality to share folders within the Dropbox folder through the local network can cause various syncing issues and is not supported.


How can I sync my data to Dropbox as fast as possible?

Migration speed depends on your internet connection and bandwidth. We recommend that you start the migration process in the evening, or before a weekend, so your team’s work isn’t interrupted.

If you want to sync data more quickly, you can always increase your bandwidth settings, which allows Dropbox to take up more of your internet bandwidth.

Important: Migrations can take time. File syncing is a complex process that involves several steps behind the scenes:

  • Each file is first hashed and compressed. It's then transferred, encrypted, and stored on our servers.
  • The Dropbox sync status displays an aggregate kB/s speed that includes these different steps.
  • Once your files have been transferred to our servers, any updates or changes to the files sync much faster since we only sync the changes.

What can I do during migration? Can I work on files immediately after they sync to Dropbox?


Every business works a little differently. Some teams find that it makes sense to migrate archived files first. For others, it makes more sense to start with active files. Either way, we recommend that you move your files in batches. When one batch of files finishes uploading, begin another batch.


  • Avoid editing any files in folders that are still being synced to Dropbox or a team member’s computer.
  • At times, Dropbox is unable to sync files that are open in certain applications. If a file is open in another application, close the application and Dropbox will resume sync.
  • When a folder shows a green circle with a check mark for all team members you can safely collaborate within that folder.

Qnap Sync App

Can I replicate my server file structure in Dropbox Business?

If you have a large amount of data, we recommend that you set up a file structure in your Dropbox Business account first. Use blank folders and labels as placeholders for your data. After sharing these empty folders with your team, you can start moving data into the folders.

Note: Dropbox doesn't allow you to share a folder that's contained in another shared folder. For more tips on setting up a folder structure, visit this article.

What if I don't have enough space on my local hard drive to sync to Dropbox?

If you don't have enough space on your local hard drive, you have two options:

Use selective sync:

  1. Move folders in batches.
  2. Wait for folders to sync to Dropbox and show a green check mark.
  3. Apply selective sync to select folders.
  4. Repeat this process until you have synced all your files to Dropbox.

Use Dropbox with an external drive.

  1. If the Dropbox application has already been installed and has created a Dropbox folder on the main drive, use the steps in this article.
  2. If you are installing Dropbox for the first time, select Advanced Options and set the location of the Dropbox folder as your external drive.
  3. Once Dropbox creates a folder on your external drive, drag and drop your folders into it.
  4. Consider these suggestions for creating a file structure. Since you are moving the files from one folder to another on the same drive, the contents of the folder will not take up any additional space on either your main drive or this external drive.


  • When the Dropbox folder is on a external drive, the external drive should be physically connected anytime Dropbox is running. The drive also must be properly formatted for the operating system of the connected device. You can view the system requirements for supported configurations and file systems.
  • The Dropbox folder should not be installed on a Network Attached Storage (NAS) drive.
  • We strongly recommend against methods that add referenced files (symlinks, junction points, or networked folders) to the Dropbox folder. Using reference files causes high CPU usage, poor syncing performance, permissions issues, and quota usage disparities.

Quick Navigation:

  • - Method 1: Sync between QNAP NAS and OneDrive via Cloud Drive Sync

  • - Method 2: Sync QNAP to OneDrive using AOMEI Backupper

Why to sync QNAP NAS to OneDrive?

Qnap Dropbox Sync Tool

QNAP offers high-quality network attached storage (NAS) to users from home, SOHO to small, medium businesses. QNAP NAS uses the smart OS QTS/QuTs hero/QES to help users manage their files and data with minimal effort. People backup to QNAP NAS for data security or share files with others through QNAP NAS.

Is it safe enough to backup important files to a NAS device? Well, it’s probably not. You may encounter NAS issues in regard to hardware, hard disk drives, and power supply, etc. To double protect your crucial data, you can run QNAP backup to OneDrive.

What’s more, files shared on a NAS device can only be accessed within the LAN. What if you want to access shared files out of your home or office? QNAP to OneDrive sync can help you make it. Files on a cloud drive are accessible anywhere with Internet connection.

How to sync QNAP to OneDrive efficiently?

To sync QNAP NAS to OneDrive, there are two methods for your reference. Method 1 only supports QNAP NAS while Method 2 supports various NAS brands like WD, Seagate, Buffalo and Synology.

Method 1: Sync between QNAP NAS and OneDrive via Cloud Drive Sync

Cloud Drive Sync allows you to perform file sync between a QNAP NAS and a cloud drive, Google Drive, Dropbox, OneDrive, OneDrive for Business and hubiC included. Follow the steps below to run QNAP to OneDrive sync:

1. Download and install Cloud Drive Sync from the QTS App Center. Click “Open” to open the Cloud Drive Sync App.

2. Create a cloud account

  • Click “Cloud Account Management” > “Create Account”.

  • Choose OneDrive from the “Cloud storage” drop-down menu and enter a name for the account. Click “Sign in”.

  • Enter your OneDrive username and password in the authentication page. Then, Click “OK” to finish.

3. Create a sync job

  • Click “Sync Job Management” > “Create Job”. Then, click “Next”.

  • Select a folder on your QNAP NAS, choose your OneDrive account, and select a OneDrive folder in “Local location”, “Account name”, and “Remote location” successively. Then, click “Next”.

  • Follow the wizard to set a schedule for the sync job, configure the file conflict policy, and set file filters in turn. After that, you can set other options like“Timeout”, “Number of retries”, and “Retry interval” based on your needs.

  • Confirm all your settings and click “Next”. Finally, click “Finish” to exit the Wizard. The sync job will run according to the schedule you set.


Qnap Dropbox Sync App

✐ Tips: Cloud Drive Sync performs two-way sync. Files will be synced from QNAP NAS to the cloud drive as well as from the cloud drive to QNAP NAS.

Method 2: Sync QNAP to OneDrive using AOMEI Backupper

AOMEI Backupper Professional is powerful file sync software that can help you with QNAP to OneDrive sync. It runs smoothly on Windows 10/8.1/8/7/Vista/XP and it offers you three sync modes:

  • Basic Sync: it will sync changed files from the source directory to the destination directory.

  • Real-Time Sync: once files are changed in the source directory, they will be synced to the destination directory without delay.

  • Mirror Sync: it will keep the files in the destination directory exactly the same as the source directory. Besides syncing changed files from the source to the destination, extra files in the destination directory will be deleted.

  • Two-Way Sync: Any changes in the source or destination directory will be synced to the other side.

What’s more, AOMEI Backupper supports all kinds of NAS devices (WD, Seagate, Synology, and QNAP, etc.) and various cloud drives (Google Drive, Dropbox, OneDrive, Box, SugarSync, hubiC and Cloudme). Learn how to sync QNAP to OneDrive via AOMEI Backupper’s Two-Way Sync below.

✍ Note: To sync files to OneDrive using AOMEI Backupper, you should install the OneDrive desktop app and sign in with your account beforehand.

Step 1. Download, install and run AOMEI Backupper.

Step 2. Click Sync and select Two-Way Sync. You can also run Synology bidirectional sync with this feature.

Step 3. Click Add Folder >Share/NAS >Add Network Location to add the QNAP NAS path. In the Add Network Location window, type the IP address of QNAP NAS and click OK. Type username and password if they are required.

Step 4. After QNAP NAS has been added, all the folders under it will be listed. Choose the folder you want to sync and click OK.

Step 5. Expand the drop-down menu of the second bar and choose Select a cloud drive.

Step 6. Select OneDrive and click OK. If you cannot find OneDrive in the list, then manually navigate to the OneDrive local folder by clicking the folder shaped button in the second column.

Step 7. Confirm the source and destination directory and click Start Sync.

>> Options: you can write a comment for your sync task so that you can figure out the specific sync contents. You can also enable email notification to inform you of sync results.
>> Schedule: you can set the sync task to run periodically. There are five modes available: Daily, Weekly, Monthly, Event triggers, and USB plug in.


You have learned two ways to sync QNAP to OneDrive from this page. Compared to Cloud Drive Sync, AOMEI Backupper offers easier steps and supports more NAS devices. Apart from the sync feature, AOMEI Backupper is embedded with the disk clone and system clone features. You can use it to clone HDD to SSD or migrate OS to SSD. Why not try it now?