Check that the app shows a "network error" message when you try to do the following actions in offline : Add a new site. Enter credentials for a site. Create a new account (signup). Get a new captcha in the signup page. Prefetch an activity or resource. View private or site files (in the "Files" addon of the side menu). Click the "+" button in the top right corner of private files (in this case the error message is different, but it should show the same icon in the error modal).