"Can't download the update. To test your connection, open System Settings and select Network Settings, Test Xbox LIVE Connection.
If the problem persists, go to
Now I've only had this issue when I tried downloading 'Community Game' on the LIVE Marketplace, whereas I had no issue with downloading FortressCraft.
My connection works just fine, as I am able to play Modern Warfare 2 with a full connection and am able to play Skyrim with no issue.
Occasionally, I lose my connection and have to re-boot my router for no apparent reason, and I haven't had any need to since I unplugged my Ethernet cord from the Xbox itself (Last occasion was 2 weeks ago.)
I was wondering if this error is due to the Marketplace, or simply a connection problem? I've seen several errors similar to this one, but none of them has been exactly the same.