Over the past few days I have been trying to download approximately 2,000 subhalo snapshot cutouts, but occasionally I get 403 or 500 errors. I do not know if the errors are tied to individual files, because some (but not all) of the failed downloads seem to resolve successfully when trying to download again at a later time. Here are a few examples that failed for me today:
You are likely running into the problem described in this thread. Particularly for the "full" cutout of Subhalo ID=0 for Illustris-1, this is a really huge amount of data, and it cannot be delivered at once.
Best solution would be to decide if you really need all the particle types and fields, and make a smaller request, or a couple of split requests (you could do this for halos larger than 10^13 for example).
Hi Dylan, it worked after splitting into separate requests for each particle type. Thanks!