I use DB on Windows, Andriod and iOS. All work as expected, but recently my iPad is not working. When I tap the DB icon, the screen flashes white for a fraction of a second and then returns to the icons display. Pressing the button twice quickly, I can see the apps in the background, including DB. Looking closely, I can see that it's on < Settings - Help, with a list on the left with the 3rd option - How do I view files offline, in highlight. The right panel has an open box image with 'Unable to view page' then 'No Internet connection. Selecting the DB icon displays the page in full, but instantly closes and displays all the icons. There is an internet connection as other apps are accessing the internet, via my wi-fi. Using my iPhone 5c, via the same wi-fi, at the same time, to display the same page; it is working OK. The wi-fi is my broadband mobile Mi-Fi on the UK 3 network.