Well, I just tried downloading the raw files from http://rtor.nyx.feralhosting.com/files/Warships/.
This didn't work, it still cuts out and then finalises the download at around 20mB. I ran a constant ping and received awful latency but relatively little packet lost during this time.
It seems like something's closing the connection rather than a timeout.
Ping statistics for 185.21.216.152:
Packets: Sent = 169, Received = 167, Lost = 2 (1% loss),
Approximate round trip times in milli-seconds:
Minimum = 330ms, Maximum = 673ms, Average = 546ms
I can't imagine this is going to be fixed any time soon so I guess I've got to download wget and figure out how to use it.