I have my hotmail set up as a corporate sync account. My email account settings are to push email for this account. My other pop3 accounts I set to fetch mail every hour. It works great except that I noticed every once in a while my settings get changed. Push email changes to enabled for "no accounts" and the fetch schedule changes to 15 minutes. I have no idea why and the only thing I noticed is that it seems to happen when I have wifi on and mobile data off. I'm not positive about that. It is sporadic. It doesn't happen when I actually turn on wifi/turn off mobile data or vice versa. Any ideas or suggestions? Thanks.