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Dropbox Backup: Untouched large file keeps restarting upload

I have one large old file (200GB) among many small ones in a folder being uploaded to Dropbox Backup.

However, the upload appears to be continually restarting, even though no software on the computer should be touching the file for any kind of write.

I've left my computer running with updates disabled for three days straight so far so that the file could try to back up. The farthest it has gotten is less than 10 GB.

After leaving it go for a while, I can open the Dropbox window again from the notification area icon to check the progress, and it will have restarted the upload over again, showing 199.8 GB remaining and back down to 166 GB out of 366 GB backed up.

This file is never going to back up, and I don't know why.

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Accepted answers

Shendare

The test Restore of the file completed successfully. It does appear that it was able to fully back up. Thank you for resolving the problem.

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DBX_Pedro

Hi @Shendare ,

Thanks for reaching out.

In this case are you using the dropbox website directly? Did I understand this correctly ?

Can you please provide the screenshots of the steps you are taking?

This will help us to assist you further.

Shendare

No, this is using the Dropbox software for Windows 11.

There isn't a whole lot I can do screenshot-wise, but this is what the Dropbox window keeps resetting to:

I have tried disabling my computer's real-time antivirus scanning, in case that was causing the problem, but the issue persists.

Hannah

Hey @Shendare, can you check your Dropbox bandwidth settings, to make sure it's not limited?

Shendare

It is currently limited, to 1000 KB/s, in order not to congest my ~14Mbit upstream connection shared with the household.

Is there some known issue with bandwidth limitations causing uploads to continually restart?

Hannah

Thanks for the update, @Shendare.

There's no known issue that could cause this, but we'll definitely get to the bottom of this.

Can you also let us know which version of the Dropbox app you're using?

You can see that by hovering over the Dropbox icon in your system tray.

Shendare

Thanks, Hannah.

Version 208.4.5824 is currently running.

I disabled the bandwidth limiter option half an hour ago just in case, but when I clicked the Dropbox notification icon to check the upload progress just now, it reset to 199.8 GB remaining again.

DBX_Pedro

Hi @Shendare ,

Thanks for reaching out with that additional information.

We have raised this issue internally, and our team is actively looking into it.

We will provide feedback as soon as we receive it.

DBX_Pedro

Hi @Shendare ,

Just a quick follow up on this. We received information that the upload was completed.

Have you managed to upload the file meanwhile?

We can take if from there.

Shendare

I will work on running a test Restore to make sure it has backed up fully and completely, and will respond here after confirming a successful test.

Shendare

The test Restore of the file completed successfully. It does appear that it was able to fully back up. Thank you for resolving the problem.