Error code D0000221

I'm having the same problem... I've tried connecting directly to my modem; cleared cache, set-up new live account; purchased new xbox, etc.

xbox support says it's my ISP. my ISP says it's xbox. this is quite frustrating!

I now have to download updates via xbox.com and transfer them to my console with usb drive. and I am unable to download map packs (or any content from xbox live) that I've purchased.

Hey there River! Just to continue testing the issue a bit, can you confirm that you have tried a wired connection directly to the modem? If not, try connecting the console with an ethernet cable to the modem. Also, can you try removing your current storage
device and using a different one, either a Hard Drive or USB. Let us know how those two tests go, thanks!

Hey Likuid Jake! Can I have you create your own thread for help with this issue, that way we can help you each through troubleshooting to find your resolution! If you could review our start here sticky for connectivity issues (forums.xbox.com/.../155724.aspx)
and post in that new thread with the information requested in bold so we can get right into troubleshooting.

I too, wouldn't mind knowing the answer to this. I also seem to be getting the same error code sometimes when checking my friends list, a current party I'm in (if applicable), or even checking my messages. It's really frustrating.

Hey there Gambit! This thread is pretty old. Go ahead and make a new thread detailing your issue and any steps you've taken so far to fix it. That is how these forums work best as it lets us tailor our support to your specific issue. Thanks! ^_^