Troubleshooting Display

Since Display needs a stable internet connection to work, you might occasionally experience issues.

Cannot share screen

If you are unable to share your screen, follow these initial steps:

• Check your network 
  Ensure both the sending and receiving devices have a stable internet connection.
  
  
• Verify the One-Time Password 
  If the password has expired, type the new one.  
  
  
• Mirroring limits 
  Display for Windows and Android support 1:1 mirroring. Each session must be between one device and one client only. Verify that no other device is sharing to your target Display app.

WebRTC issues

Display uses the real-time communication (RTC) protocol WebRTC to share video. If you still can't connect, use the the following online tool to test your WebRTC status:

• https://myviewboard.com/cast2/test/index.html

On the receiving device 

Use a web browser to run the online tool for WebRTC status. If the results show:

• At least 1 green line, WebRTC network has no connection issues.
• Only red or yellow lines, WebRTC network is blocked or has an issue.

On the casting device

Use a web browser to run the online tool for WebRTC status. If the results show: 

• At least 1 green line, WebRTC network has no connection issues.
• Only red or yellow lines, WebRTC network is blocked and has an issue.

In summary: Both receiving and casting devices must display at least 1 green line to indicate a healthy WebRTC connection.

To resolve WebRTC connectivity issues, verify that all recommended ports are open and accessible. For more information, refer to the following article to review the system requirements for Display:

• Download & install Display

Display Code is missing

Occasionally, a server error may prevent the Display Code or One-Time Password from appearing. If this occurs: 

• Wait a few minutes, and then check the Display app again. 
• Avoid using Display until the code and password have reappeared.