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Windows Miracast Troubleshooting

This article applies to the following ScreenBeam products: ScreenBeam 1xxx-Series, 960 and 750.

When attempting to connect to a ScreenBeam with a Windows device there are a few things to check if your connection is unsuccessful:

If you are unable to see the ScreenBeam in your connection menu it may be your wireless card.

If you are unable to see the ScreenBeam in your connection menu it may be your wireless card. By default, ScreenBeams use a 5GHz channel for wireless display, so you must have a dual-band wireless card. You can check the model of your wireless card in Device Manager on your PC, look in the Network Adapters section. If you don't have a dual-band wireless card check out these workarounds.

 

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If you can see the ScreenBeam in the Connect menu, but the connection fails

If you can see the ScreenBeam in the Connect menu, but the connection fails, the first thing we recommend is to disconnect from any VPN software and try to connect to the receiver again. VPN software may block your connection, click here for more information.

If you can see the receiver in the Connect Menu and can enter the PIN, but the connection immediately fails after PIN entry

If you can see the receiver in the Connect Menu and can enter the PIN, but the connection fails after PIN entry this can be caused by Group Policy.

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If you're using a managed device you will need to check your Group Policies, this article should help you out.

Once you?ve ruled out VPN and Group Policy, make sure you have the latest drivers for your Graphics and Network cards.

Once you?ve ruled out VPN and Group Policy, make sure you have the latest drivers for your Graphics and Network cards. Out-of-date drivers can stop a connection or cause intermittent connection issues. You can check your driver versions by going to Device Manager and expanding the Network Adaptors section, copying the name of your wireless card and Google the name of your card, and looking for driver updates from your PC OEM or the hardware OEM. The process is the same for your Graphics card. Windows Update does not always have the latest drivers, which is why we recommend this process.

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Firewall settings may also need to be adjusted antivirus software is a consideration also.

If you?re able to get connected to ScreenBeam, but experience dropped connections or performance issues check out these suggestions.

When connected to the ScreenBeam you see black bars surrounding the image on all sides of the screen

When connected to the ScreenBeam if you see black bars surrounding the image on all sides of the screen.

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This is most likely due to an Intel Graphics setting you will need to set the Screen Size to 100% in the Intel Graphic Properties wireless section you can find instructions here.

If after connecting to the receiver your display screen is black you need to check your display settings

If after connecting to the receiver your display screen is black you need to check your display settings, you must select either duplicate or extend. While in the extended mode you will only see your Windows background and not your icons and shortcuts.

No sound output

You can think of ScreenBeam as a wireless HDMI connection. Once connected the audio playback device is automatically changed to the ScreenBeam and the attached display. If your display does not have speakers the sound will seem to be muted, to correct this left click your volume control and be sure to select your PC speakers.

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While playing a video, if the audio is out of sync or the video is stuttering and choppy

While playing video, if the audio is out of sync or the video is stuttering and choppy your laptop may not meet the minimum hardware requirements or have enough available resources for smooth playback. Check our tips on resource management.�Another issue that can cause the choppy video is the poor wireless signal between the ScreenBeam and your laptop, or between your laptop and your internet connection, for mitigation strategies use this article

If your Windows Desktop Freezes or Locks Up When I Try to Connect to ScreenBeam

There is an issue that may occur on Windows systems where components of the desktop may freeze or lock up when connecting to ScreenBeam. This behavior typically occurs when a user reconnects to ScreenBeam, either by the side or top overlay panels, immediately after a failed connection. This results in the overlay panels being frozen on the screen and various desktop components, such as the system tray, becoming unresponsive. The PC will typically need to be rebooted to recover from this state. Click here for information and a link to the Hotfix.

Environmental factors

When deploying your ScreenBeams you must take several variables into account.

When deploying your ScreenBeams you must take several variables into account. Our recommended best practice is to stagger P2P channels on receivers that are adjacent to each other, as well as avoid the channels that your infrastructure APs are on, this reduces the possibility of interference. Depending on the size of your room and the density of wireless devices you will want to adjust the transmit power, it is recommended to use medium or high. You can read more tips in our Miracast Whitepaper here

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