This is the first time it happens to me. I am trying to install the latest iOS 11 update, 11.0.1, going the usual route, Settings -> General -> Software update and clicking the "Download and install" button. I give my password as requested and then ... nothing. No download for the update. After trying over many hours, letting the iPad alone to see if it will start downloading after some time, rebooting and switching wireless networks (checked to work properly), still nothing. This is an iPad mini 4 running iOS 11.0.