How do I fix the Dropbox error 400?

1. Rename the file to fix Dropbox error 400 on uploads

Another variation of the error shows when you attempt to upload files to Dropbox. If you get this Dropbox error 400 message, simply rename the file you want to upload. Renaming the file to a shorter name fixes the problem.

2. Reinstall Dropbox

If you are getting the Dropbox error 400 on the desktop Dropbox application, use this solution.

4. Update your drivers

5. Perform a system restore

Follow the solutions closely to fix the Dropbox error 400. Bearing in mind that there are many causes of the error, you may try a few before fixing the issue. If none of these solutions work, let’s talk about it in the comments.

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