The screen freeze like feature is located in ViewBoard Side Toolbar as below.
After you tap it, it will freeze the screen and you work on something else.
Which product are you having this issue? myViewBoard Whiteboard for Windows or myViewBoard Classroom?
Could you tell me the product version number?
Could you attach a screen shot or recorded video to let us investigate the issue further?
I will forward ViewBoard Cast related issue to the co-responding personnel. However, I think the issue is not caused by new myViewBoard firewall whitelist, because AirPlay is a LAN based screen sharing solution. It does not go through Internet to share screen.
You can download myViewBoard Whiteboard Basic from
However, the basic version does not meet your needs so far. We are still developing the full version of myViewBoard Whiteboard for iOS which will be on Apple App Store within next two months. Please wait for it a little bit longer. Thank you.
Has your school subscribed myViewBoard Manager Advanced?
myViewBoard Manager Advanced version provides access control feature to each IT admin.
Now, you can download myViewBoard Whiteboard full version from