Dropbox downloads files bigger than 20 GB

Hi,

We are sharing enormous files sometimes with dropbox, files over 20GB/50GB and beyond, we've been doing that for a long time with dropbox but recently I've encontered a server error when downloading any big file via chrome without downloading the application. Our internet connection is stable and very good. We've tryed with differents computers in differents network. We've zipped our files so it get smaller and we go into the file page to make sure we're downloading only one file and dropbox is not doing a zip file of our zip file.

And then we get the server message when we're about half through the download.

I was wandering if anything changed with dropbox recently about file downloads if there is new limitations. We're not using Dropbox Transfer we use normal file sharing through the application. We've got all the same options in there so I don't really know why there is dropbox transfer since it used to work just fine. 

Thanks in advance,