MrJake

Just to add, attempt to flush the DNS various times. My issue was essentially the servers DayZ Commander was connecting to were either over encumbered or simply not responding, so I flushed the DNS, attempted to download, flushed again and attempted to download and after my third attempt all was well.

Hey Buddy, I just had the exact same problem, it turns out some of the CDN servers for DayzCommander are either down or have basically crashed. What you need to do is have DayZCommander open and flush the DNS on your machine. To do that, goto the Start Menu and type Command Prompt. Run it as an Administrator Open DayZ Commander In the Command prompt, type ipconfig /flushdns Now attempt to download or update one of the DayZ Mods. Every time you get the error, once again do the command. Each time you will see it will refuse from a different IP Address. keep flushing your DNS until it works, and voila! You'll be downloading DayZ