Miracast + Bildschirm Spiegeln funktioniert nicht

You can share your screen (without delay) on any smart TV, computer, tablet, laptop, smartphone, MAC, PC, and other devices. - Use screen mirroring in meetings and online classrooms, allowing you to focus on work and study efficiently. - Use screen mirroring during the live broadcast, allowing you to observe details more clearly. - Use screen mirroring when watching movies and TV shows, allowing you to enjoy perfect visual effects. - Cast the whiteboard to the screen for presentation, allowing you to express your point more easily. - Cast photos on the screen during the party to ignite the party atmosphere.  Screen Mirroring is a simple and easy-to-use smart screen mirroring, you can enjoy amazing visual effects and a perfect movie viewing experience with just one click.  Just connect your mobile phone and device to the same Wi-Fi, you can watch movies, slide shows, and videos on a high-definition large screen anytime, anywhere.  Information about the auto-renewable nature of the subscription. - You can get unlimited access to all the Pro functions. - Subscription periods are 1 month or 1 week.  As a live entertainment assistant, it allows you to enjoy leisure moments!  As an office assistant, it also allows you to complete work tasks more efficiently!  The app is very easy to use.  Every 1 month or 1 week your subscription renews. - Payment will be charged to iTunes Account at confirmation of purchase. - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - Account will be charged for renewal within 24-hours prior to the end of the current period.