Issues when downloading many files

[ramarty]

I was downloading data for multiple days and the "retrieving" failed a few times. The function still worked, as it's designed to retry. But not sure if there's something going on where it's trying to download too much at one time? Not sure if limiting to, say, 2-3 concurrent downloads would help this issue? (I never seem to get these red bars when downloading just a couple tiles at once).