Hmmm... indeed, you haven't made much progress on the download.
Can you replicate this and then after it hangs for more than 10 minutes (or if it times out by them), send me the YAAC.out file from your YAAC log directory? The reason I say to wait 10 minutes is for standard TCP/IP timeout to occur, in case that is the cause, so either way I get an accurate error message.
The other question is: what exact date and time did you do this? I was upgrading my server around when you sent the original email. So were you in the middle of a download when I shut the server down for upgrade? I always check before I reboot the system, but it doesn't mean you didn't slip in between my check and when the shutdown script turns off networking.
Andrew, KA2DDO
author of YAAC