So my ipad was connected to my iTunes on mac to enable wireless sync. I did check the "wireless sync...." thing in iTunes, so when I unplug the ipad, the ipad stays in the sidebar. However, it keeps on disappearing every few days, so I have to reconnect it and it will show again for a few days, I don't know what's causing the ipad to be disappearing from iTunes. I did NOT eject it. If it keeps staying there, I can just press the "sync" button, and it will sync wirelessly. It's really really annoying.. Any help would be appreciated!