Troubleshooting Display

Because Display requires persistent connection to the internet, on rare occasion, you may encounter any of the following scenarios.

Cannot share screen

If you have issues connecting, first review the following:

• Check that both the receiving device and the casting device have a stable network connection.
• Check if the One Time Password has expired and enter the new one if it has.

Mirroring

Display for Windows and Android support 1:1 mirroring, meaning each session must be between one device and one client only.

WebRTC

WebRTC is a real-time communication (RTC) method used by Display, all popular web browsers, and other apps to share video. You can run the following WebRTC testing tool to check your connectivity status: https://myviewboard.com/cast2/test/index.html

Step 1: Open a web browser on the receiving device and run the following tool to check WebRTC status: https://myviewboard.com/cast2/test/index.html

• If it shows at least 1 green line, this means WebRTC network has no connection issues.
• If it shows 3 yellow lines, WebRTC network is blocked and has an issue.

Step 2: Open the same link on the casting device.

• If it shows at least 1 green line, this means WebRTC network has no connection issues.
• If it shows 3 yellow lines, WebRTC network is blocked and has an issue.

In other words, both steps 1 and 2 must display at least 1 green line to indicate a healthy WebRTC connection — one green line for the receiving device and another green line for the casting device.

To resolve WebRTC connectivity issues, ensure you have opened the recommended ports. (See Display system requirements.)

Display Code not accessible

In cases when Display encounters server errors, your Display Code or One Time Password may not display and/or function as expected.

If you encounter this, no action is required on your part. Allow some time to pass before checking the Display app again to see if the problem persists.

Please do not attempt to use Display again until the Display Code appears and the One Time Password timer begins counting again.

Due to server errors, the Display Code may not appear.