I'm sorry but 3mdeb server is down. We will fix that on Monday (16.04.2018). Unfortunately, I have no access to the server, so I can't post binaries on a different server.
@nick, yes you can try to force flash. There should be no issue, but please note you are doing this at your own risk. If you flash the firmware to board you should have recovery dongle which cost couple EUR. An APU1 image was tested in a minimal way because we simply do not have resources to do it in extensively.