I have had issues since I got back from Afghanistan in October and unpacked the xbox 360 from storage. It will not update here or at a friends house that has another internet provider (and a working xbox!). I have tried Live updates as well as USB/CD/DVD updates but all fail. I have factory reset the xbox, wiped the drive/cache to no avail. The Live code I receive is 4099-40a3-a080-1200-d000-0034. My current DB is 2.0.16537.0.
I have nothing stored on my local drive, I have tried connecting the xbox directly to the cable modem but nothing makes a difference.
When doing trace route on live the last hop is #13 at 126.96.36.199.
I would really like to get this thing updated! Let me know if I need more info, I'm ready to work this to completion.