Does anyone have problems with their jobs randomly not downloading from a cluster?

We’ve been having all sorts of problems with Materials studio deciding randomly to not talk to the cluster running our calculations.  Sometimes jobs download when finishing and sometimes the succeed and then are not downloaded.  I’ve attached a few screen clippings of the testing ensuring my computer can talk to the gateway and jobs server fine – it can.

It's been suggested that the filename is too long, but this is not the problem as sometimes the jobs download after trying multiple times on different days.  This sounds like a server communication issue, but from the provided diagnostics I've been able to find and run, everything looks fine.  In fact, the jobs in the screen clippings below, all eventually downloaded fine.

Any ideas?

User-added imageUser-added imageUser-added image