1. Why does JustStream want to record the contents of my screen?
    JustStream uses screen recording function only within its "Screen Mirroring" feature and for no other purposes. In avoidance of any doubt, the only purpose of using screen recording is to cast the user's live screen to his/her TV display device in the same local network. Upon streaming, all digital content created during screen mirroring is deleted from the disk or memory. See our Privacy policy.
  2. Are you sending my screen information to a server?
    No. The data is sent directly to a TV display device and does not pass through any of our servers. Therefore, JustStream never uses, shares, retains, transfers, or discloses screen recording data to any third parties. Upon streaming, all digital content created during screen mirroring is deleted from the disk or memory. See our Privacy policy.
  3. Why does JustStream need access to the microphone?
    See this article.
  4. Why can't some apps be cast, or why can't some DVD or movies be cast?
    Some apps block Screen Mirroring. This means that application developers can choose themselves if they want to block Screen Mirroring. For instance, Netflix, Disney+, and Apple TV have decided to block this. Apple has HDCP DRM protection for playing DVDs or iTunes Movies. This means that they also block screen mirroring when watching DVDs or iTunes movies.
  5. When I play a DVD, screen mirroring does not work
    Apple has HDCP DRM protection for playing DVDs. This means that they also block screen mirroring when watching DVDs. Add the folder VIDEO_TS to JustStream and be able to stream files directly to the device. Check how to stream files here
  6. When I play iTunes movies, screen mirroring does not work
    Apple has HDCP DRM protection for playing iTunes movies. This means that screen mirroring is not possible when watching movies from iTunes.
  7. Netflix gives an error message “Please ensure your monitor is HDCP compliant and is not mirrored using Airplay”
    When I try to watch Netflix on my Mac and use Screen Mirroring at the same time, I get an error from Netflix that reads like: “Whoops, something went wrong…There appears to be a display problem. Please ensure your monitor is HDCP compliant and is not mirrored using Airplay.”
    This problem only exists in the Safari browser. When you use Chrome or Firefox browser, the same content will play just fine. So whenever you see this error message appearing, please download and install Chrome or Firefox for Mac and use one of those two browsers to watch Netflix.
  8. The audio of my Mac is not sent to the TV
    First of all, make sure that you have downloaded and installed the JustStream Audio Driver.
    After that, make sure you have granted JustStream access to the microphone.
    Tip: Visit the easy installation guide for more information and instructions for Audio Driver.
  9. The sound of my TV is jumpy and stutters during screen mirroring. What should I do?
    Mirroring the screen with sound consumes a lot of system resources. It will cause performance issues if your Mac model is too old. Please reduce the video resolution in the Preferences > Mirroring tab and close other large apps when casting your screen with audio.
  10. How can I improve screen mirroring quality?
    The quality of your experience will be dependent on the quality of your local network. Some tips to enhance the experience:
    • Preferably, connect your TV by LAN cable to your router.
    • Use a Wi-Fi AC router. If you don’t have one, then an “n” router.
    • Try not to overload your Wi-Fi network by moving big files around while you are mirroring.
    • If you want to watch movies on TV, it's better to stream files directly to TV rather than mirroring what's on your computer's screen while watching movies. See how to stream files here.
  11. Why is there a picture/sound lag while screen mirroring?
    There is typically a 3-4 sec lag between what is shown on a monitor and your TV due to the TV buffer. i.e. the app is not primarily intended for real-time activities such as gaming. By default, you can mirror your screen video for showing photos, giving presentations, browsing the web, etc.
    Please, keep in mind that actual mirroring performance also depends on your network condition.