Several issues here but all seemed to occur since IOS9.1 update. When I try to sync my ibooks from two different PC's it will resync the 5 pdfs but not the 13 ibooks. The ibooks section is just blank. After several attempts I tried to do a restore of a previous backup that contained all the books and pdfs but hangs after I attempt to turn off the Find my iPad feature under icloud settings. It asks for my apple id password and just hangs after I enter it. Password is valid according to the online appleid site. I have the icloud app turned off because of bandwidth issue using a satellite based isp that is extremely tight on bandwidth usage. Any suggestions on how monitor bandwidth usage at an app level would be appreciated. Last night during off peak usage I tried downloading the latest update to itunes that eventually aborted on all 3 attempts. Any suggestions for users on a slow connection?