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5 Quick Fixes: Synology Cloud Sync Not Syncing All Files

Do you encounter the Cloud Sync not syncing all files on Synology issue? Don't be panic! There are 5 tested solutions to help you out. Or, you can try the best workaround shown in this post to sync Synology with another cloud effortlessly.

November 1, 2024

User Case: Cloud Sync Does Not Sync

 

Files would be pulled from Google Drive after initialization and folder creation from Cloud Sync. When I tried to rename the file on File Station, it worked. I then try to rename the same file on Google Drive, but it doesn't work. I tried renaming the file on File Station once more, but the change did not sync with Google Drive. Even though it was only a few moments ago!

- Question from Reddit

Why is Synology Cloud Sync Not Syncing All Files?

Synology Cloud Sync Not Working

Several factors could contribute to Cloud Sync not syncing all files on Synology. Let's see how they differ from each other:

  • Insufficient Cloud Storage Quota: If your cloud storage account has insufficient space, the sync process might fail to complete successfully. So, you have to get more cloud space to ensure you have enough storage available in your cloud account to accommodate all the files you want to sync.
  • Network Connectivity Issues: Stable internet connectivity is vital for the smooth functioning of Cloud Sync. If your network connection is weak or unstable, it can interrupt the sync process and lead to incomplete synchronization.
  • File Size Limitations: Certain cloud storage providers impose file size limitations. If you're trying to sync files that exceed these limitations, the sync process may halt or omit those large files.
  • File Name or Format Conflicts: Sometimes, certain characters or file formats in the filenames can lead to conflicts during the sync process. These conflicts can prevent specific files from syncing.
  • Synology Cloud Sync Configuration Errors: Incorrect configuration settings in Synology Cloud Sync can also cause sync issues. It's essential to review your settings to ensure they align with your cloud storage preferences.

Troubleshooting Synology Cloud Sync Not Syncing All Files

Synology Cloud Sync Cannot Sync All Files

Now that we've identified the potential causes, let's explore troubleshooting steps to resolve the sync issue:

Way 1: Check Cloud Storage Quota

Verify the available storage space in your cloud storage account. If it's nearing capacity, consider freeing up space or upgrading to a larger storage plan.

Way 2: Ensure Stable Network Connection

To avoid network-related sync issues, ensure that your Synology NAS has a stable and reliable internet connection. If necessary, consider using a wired connection for better stability to get rid of the Synology Cloud Sync suspend trouble.

Way 3: Verify File Size Compatibility

Check if the files you're trying to sync comply with the file size limitations set by your cloud storage provider. If some files are too large, consider compressing or dividing them into smaller parts.

Way 4: Resolve File Name Conflicts

Review your file names for any conflicting characters or formats. Rename files if necessary to avoid potential conflicts during the sync process.

Way 5: Review Synology Cloud Sync Settings

Double-check your Synology Cloud Sync settings to ensure they align with your cloud storage preferences. Adjust any settings as needed to facilitate a smooth sync process.

Best Alternative When Synology Drive Not Syncing - MultCloud

If the above solutions cannot handle the Synology Cloud Sync not syncing all files issue, you can use MultCloud Cloud Sync as an alternative to sync between Synology Drive and Drive clients:

  • MultCloud data traffic instead of bandwidth to transfer files, so you won’t be stuck in a weak network connection issue.
  • MultCloud can automatically rename the files that contain special characters and generate a script file. So, you can also avoid the conflicted file name problem.
  • MultCloud offers a Two-way Sync mode so that the sync process can go both ways.
  • You can also schedule the sync task or make it run in real-time.
  • MultCloud solution can offer more target clouds (30+ cloud storage services). It can be used to sync Synology with Dropbox, OneDrive, SharePoint Online, and other clouds.

Step 1: Click Get started for free on the home page of the MultCloud web to get a new account.

Step 2: Add Google Drive and Synology NAS to MultCloud by clicking Add Cloud and their icons. Also, log in to your accounts in the pop-up windows.

Add Google Drive and NAS

Step 3: Click Cloud Sync and choose Google Drive in the FROM box and NAS in the TO box. Finally, tap on the Sync Now button to start the file syncing task.

Sync Google Drive to NAS

Notes:

  • You can automate the sync task with the Schedule feature. What you need to do is choose an exact time and save this setting. Then the task will run at the appointed time automatically.
  • If you only want to sync some files like documents, photos, videos, or others, you can use the Filter feature to pick out these files at once instead of selecting manually.
  • If you have many large files to sync, the 5GB of free traffic may not meet your needs but you can buy a paid plan to get more traffic.
MultCloud Cloud Sync Schedule

Conclusion

Like any software, Synology Cloud Sync may encounter occasional issues. In this guide, we've discussed the common problem of "Synology Cloud Sync not syncing all files" and provided troubleshooting solutions to overcome it.

Besides, the post provides a brand-new way for you to sync Google Drive with Synology and that is using MultCloud Cloud Sync. You may try it as an alternative to Synology Cloud Sync. There are more great functions on MultCloud and more issue solutions can be solved with them. If you want to backup Gmail to Synology NAS, just go with MultCloud!

FAQs about Synology Cloud Sync Not Syncing All Files

Why is Synology diskstation not syncing all files?

Several reasons could be causing your Synology DiskStation to not sync all files. These include insufficient storage space, network connectivity issues, file size limitations imposed by your cloud storage provider, file name conflicts, or incorrect Synology Cloud Sync settings.

What is the file size limit for Synology Drive Sync?

Synology Drive Sync doesn't have a strict file size limit. However, it's recommended to sync less than 500,000 files per client since too many files may lead to bad performance.

How do I speed up my Synology cloud Sync?

To speed up Synology Cloud Sync, you can optimize network settings, adjust sync settings, use a powerful NAS, compress large files, schedule syncs during off-peak hours, and monitor system logs for issues.

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