Hi all. I've had this problem every so often from about Nov, however in the last month it has escalated such that now I am unable to connect to Live at all due to profile-related issues. A description of my problem goes like this:
When I first turn my console on, it takes an unusually long amount of time to get to the main logo, and between 2 and 5 minutes to get to the profiles. I turned off auto log in a while back in the hope of fixing this. My profile is not visible in its entirety. One or more of avatar, gamerscore, gamerpic is missing - it's usually the avatar that is blank.
Selecting my profile leads to 2-10 minutes of attempting before I am asked to download an update, usually after checking network status. This download attempt nearly always reaches about a third or half way of the progress bar before failing. The response: "Can't download the update. To test your connection... Status Code 3F4B - 0000 - 3080 - 0506 - D000 - 016B". I have then tried to download my profile which leads me to checking network status, which sometimes fails but most of the time progresses to the point where I am again downloading an update and receiving the identical error message. Many times I've skipped the attempt to log in and go straight to the download profile option, with the exact same results.
After checking a few of the forum queries recently, I tried clearing the cache and also tried the delete-and-download-the-last-system-update trick. This didn't solve the problem and I would end up going through the same process with the same results.
Early on when this was happening, it might have taken one or two attempts to go through this before the download completes, and takes me to the the email address and password section of the profile download process, and eventually succeed in retrieving my profile completely. It would then be a month or so before the issue reappeared. Worryingly now though, the last time I successfully downloaded my profile, about ten days ago, the very next day it was back to the same problem and I've many unsuccessful attempts since.
Typically I am spending anywhere between 1 - 3 hours, attempting this process seven, eight or ten times before cursing and giving up. This may give you and idea about the delay between screens that my consoles often takes. Needless to say it's incredibly frustrating, so any help offered would be welcome.