Error (504) when trying to restore a file

Hey Nick K.19, I'd be happy to look into this with you!

Does this happen with a specific file or all of them? 

Also, if you try to restore a file using your deleted files page, do you get the same results? 

Let me know more, and we'll take it from there!

I'm not trying to restore a deleted file, I am trying to go to a previous version of a file (which apparently dropbox also calls "restore"). It's not specific to the file, I've tried a few more and the same thing happens.

Addendum: Restoring actual deleted files also doesn't work, but I don't get an error. The page takes a while telling me "restoring files" then it appears to be done successfully (the file I'm trying to restore gets removed from the deleted files), but there are no files actually restored.

If I refresh the page, the file I restored is in the deleted files list again.

I've been getting this error since last night. Tried different browsers. Restarted Dropbox. Restarted my system. Tried on another computer. Just a long wait trying to submit my request to restore a previous version, and it ends up with this error 504. This appears to be an issue on Dropbox's end and I wish that they would admit it and work on it.

Well, I am also facing the same issue. But still I have not found solution for that. I would be happy if you can also share the solution.

I contacted support through live chat, they said that I would need to continue it in email support. Emailed them that I'm still having the same issue. Still haven't heard back.

Thank you for keeping us updated. I hope Dropbox Team takes this seriously and react soon.

Support got back to me and suggested the same things we typically do to resolve these issues:

1. Use a different browser like Safari, Mozilla Firefox, or Chrome.
 
2. Clear your browser's cache. You can find instructions for doing so here:
 
http://www.wikihow.com/Clear-Your-Browser's-Cache
 
3. Try Incognito Mode or Private Browsing mode. You can find instructions for this here:
-- Chrome: https://support.google.com/chrome/answer/95464
-- Firefox: https://support.mozilla.org/en-US/kb/private-browsing-browse-web-without-saving-info
-- Safari: http://support.apple.com/kb/PH19216
 
4. Restore your browser to its default settings and disable any browser plugins. The issue you're experiencing may be the result of a security setting or a plugin that you have installed on your browser.
 
5. Update your Browser. You can find the instructions here:
-- Chrome: https://support.google.com/chrome/answer/95414?hl=en&co=GENIE.Platform%3DDesktop
-- Firefox: https://support.mozilla.org/en-US/kb/update-firefox-latest-release
-- Safari: https://support.apple.com/en-ie/HT204416

An attempt to post an asynchronous request to Dropbox for restoring a file hangs at 90 seconds without a response from their server, so they fall back to the Error 504 page. So somewhere in their network a configuration file or system is just out of whack and needs someone to find it and fix it. If the system works for most all the commands we do except this, then whatever this call references and what servers it has to reach is specifically the problem. Until they admit that there is a problem, no one's going to look for it.

If you're having this issue right now, please reply to this thread so Dropbox can see that it's not a client-side issue.

I also think that it is not a client-side issue because except this restoring files issue, other functions still working trouble-free for me.

This sounds like a Gateway Time out error that another user reported April last year (https://www.dropboxforum.com/t5/Delete-edit-and-organize/504-Gateway-timeout-when-restoring-file/td-p/677475)

I