Getting Error when trying to download folder with images in them

I'm trying to download a folder with 1500 images in them and that are about 18mb each. In chrome the download starts gets to like 1 GB then like 2 mins later I get a "Check Internet Connection" error. 

I've tried incognito, safari, clearing all history. Tried on another computer, tried on another internet connection. It's for sure not on my side. The problem is with Box. Why is this happening  ? 
If I go into the folder and select like 5 images then it will download it no problem. I don't understand why it can't handle it. It's max 20 GBs