Trying to connect to Xbox live on my 360 for the first time in over 6 months. When I test connections, all confirms except at the Xbox Live Prompt. It tells me to go download an update, and when I try to Download it, the update fails and tells me to test my connection. This cycle repeats over and over. I have noticed that when I accept the update right before it switches over that the Xbox Live prompt does fail. Upon declinding it (and it failing again) I was given these error codes. W 0000-0021 X 0000-F009 Y Z0A8-4840 Z 8015-1007 If anyone else has had a similar problem please let me know. Any help would be appreciated.