Had this problem on another developers ROM when 2.1 can out and it looks like a similar thing is happening with SS 4.6. While the 2.2 OTA update is blocked from installing my phone is still downloading it. I doesn't give any indication, but I noticed the data usage. Going to settings-about phone-system updates showed it was halfway through the download. When the install fails it redownloads the update again a few hours later. Downloading a ~45 MB file every couple hours really eats into your battery life. Anyone else having this issue? Is there a fix?