Noob asking for help with failed downloads

[Bobuntu]

Hi Everyone,

I have been using sabnzbd+ for over a year, but I still consider myself a noob. I just followed some instructions online to get it set up and it works great most of the time. I do have occasional downloads that just fail and don't repair. They always say "Repair failed, not enough repair blocks (xxx short)". My question is what should I do when that happens? Sometimes I can find a different nzb to download, and that has been working. Is there a better way to fix these? Can i have the program look for the missing repair blocks? Do I need to change some settings? For reference I am using Newshosting as a server and here are a couple of pertinent log files on pastebin. Hope you guys can help me move into a new level of understanding how to use this great tool.

http://pastebin.com/qPp3DXxs

http://pastebin.com/BaeFgZ9y

[sander]

See http://wiki.sabnzbd.org/faq#toc30 for the possible causes and possible remedies.