I got this device last week. The UI is maddening. I tried to get it as vanilla as possible and have followed all of the tips. The biggest problem that I have is that my google account stops syncing. I go into the calendar and get a notification that sync for this account is not enabled. I enable it. It'll switch off again later without me doing it. My hangouts messages stop coming thru unless manually refresh. The emails stop coming in unless I refresh...I can't figure out how this keeps getting turned off. I've been turning on the device and using apps so the entire device shouldn't be going into doze mode. I need my notifications to go off as the messages roll in. Anyone know what is going on and how to fix it?