I think this is partly an issue with using the same profile on multiple 360 consoles. I have two, and keep my profile on an MU as I swap between consoles on a daily basis. The first console I updated did so with no problems. Still can connect on that one. My second 360 downloaded the update fine, but says t can't retrieve the profile, same error (80151103). It clearly sees the profile on the MU, but will not log in. Almost as if my profile is now tied to the first console and not the MU. Any suggestions?