Windows 11 casting

Greetings LucyW,

I believe this feature is meant for receiving castings on a Windows 11 device rather than sending them. Nonetheless, I tried it, but unfortunately, it still doesn't seem to be working as expected.

It doesn't seem to be a hardware issue since the TVs are visible in the casting menu. When I attempt to connect, a message indicating that my laptop is connecting is displayed on the TVs, but unfortunately, nothing happens afterward.

I appreciate your support. If you have any additional insights or suggestions, please share them with me.

Best regards

I had a similar issue yesterday and found something that hasn't posted anywhere and worked for me on a similar setup (Windows 11, RTX 3070, Intel Wireless AC 9462 trying to cast my screen to LG B9 OLED TV)

Go to Network Connections - right click on your network adapter and click Properties - Configure - Advanced then set 802.11a/b/g to Value: 5GHz 802.11a

After I did that, my computer connected to my tv without issue.

I had a similar issue yesterday and found something that hasn't posted anywhere and worked for me on a similar setup (Windows 11, RTX 3070, Intel Wireless AC 9462 trying to cast my screen to LG B9 OLED TV)

Go to Network Connections - right click on your network adapter and click Properties - Configure - Advanced then set 802.11a/b/g to Value: 5GHz 802.11a

After I did that, my computer connected to my tv without issue.

Thank you so much!! I've been trying different solutions for this problem for nearly 3 hours now and this finally worked, except that I chose a different value.

Hi LucyW, thanks for the feedback. Answering your questions:

"You mentioned that you have three laptops, all with Windows 11 installed, do the other two laptops work fine when casting to these three TVs?"

The setup is as follows:

• 2 Dell laptops (Intel i7 with integrated graphics), running Windows 11 23h2
• 1 Acer laptop (Intel i7 with integrated graphics + nVidia GeForce 3060), running Windows 11 23h2

Both Dell laptops successfully cast to any of the three displays, while the Acer laptop does not cast to any of them. Therefore, it appears that the issue lies with the Acer laptop rather than the displays.

"You seem to be using Miracast for screen casting, have you tried connecting the computer and the TVs directly using a data cable?"

When connected with an HDMI cable, external displays function correctly with the Acer laptop.

"You mentioned that the problem occurs after a specific Windows installation, are you referring to Windows Update? If your issue is after a Windows Update, please check in Settings - Windows Update - Installed Updates to see if the update can be uninstalled."

Wireless casting issues existed even before updating to Windows 11 23h2, and the same problem was observed with Windows 22h2.

"Please switch off the computer, remove all external devices, unplug the power cord, reconnect it after a minute, switch on the computer and see how the problem behaves."

The problem persists after following these steps.

"View the problem manifestation in a new local user. Creating a new local account can help you troubleshoot problems caused by user profiles. Create a local user or administrator account in Windows - Microsoft Support."

The problem continues to persist even with a new user profile.

"Try to repair the system."

The problem remains unresolved after running DISM and SFC commands.

If you have any additional ideas to assist, I would greatly appreciate it.

Hi thomas_og

Has the problem always existed? Or does it appear suddenly during use?

Please try resetting your network and reconnecting later

1. Control Panel-Network and Internet-Network and Sharing Centre-Change adapter settings,right-click on the name of the network you are currently connected to, click Properties, click on "Internet Protocol version 4Click "Internet Protocol Version 4", then click Properties, and in the dialogue box that pops up, click "Use the following DNS server address", and enter "4.2.2.1" and "4.2.2.2" respectively. "Click OK.
2. Open: Control Panel-Network and Internet-Internet Options-Advanced-Restore Advanced Settings-Apply-OK, Connections-LAN Settings, make sure Auto Detectis ticked and Proxy Serveris unchecked, then click OK.
3. Locate: C:\WINDOWS\system32\drivers\etc to find the hosts file to cut to the desktop(i.e., clear the operation of the host).
4. In the taskbar search box, type "cmd", right-click on the command prompt, select Run as administrator, the command prompt window to execute the following command: netsh winsock resetEnter, and then restart the computer.

Please try to turn off the power, unplug the power cord and external devices, and wait for thirty seconds before turning on the power.

Best Regards,

LucyW-MSFT | Microsoft Community Support Specialist

Dear thomas_og

Welcome to Microsoft Community.

I understand that you are currently experiencing a Windows 11 casting problem. You have reinstalled the relevant drivers and uninstalled your anti-virus software, but the problem persists.

I understand your concerns and will do my best to assist you. However, I need more information to accurately identify and solve the problem. If possible, could you please provide the following information with me:

• You mentioned that you have three laptops, all with Windows 11 installed, do the other two laptops work fine when casting to these three TVs?
• You seem to be using Miracast for screen casting, have you tried connecting the computer and the TVs directly using a data cable?
• You mentioned that the problem occurs after a specific Windows installation, are you referring to Windows Update? If your issue is after a Windows Update, please check in Settings - Windows Update - Installed Updates to see if the update can be uninstalled.

Until then, please try the following basic troubleshooting options, which will help us narrow down the problem.

• Please switch off the computer, remove all external devices, unplug the power cord, reconnect it after a minute, switch on the computer and see how the problem behaves.
• View the problem manifestation in a new local user. Creating a new local account can help you troubleshoot problems caused by user profiles.Create a local user or administrator account in Windows - Microsoft Support
• Try to repair the system

1. Search for CMD, find Command Prompt, select Run in administrator mode.
2. Enter the following commands one by one, be sure to execute the next command after the previous one is completed 

   	DISM /Online /Cleanup-Image /ScanHealth <br><br><br><br> DISM /Online /Cleanup-Image /CheckHealth <br><br><br><br> DISM /Online /Cleanup-Image /RestoreHealth <br><br><br><br> SFC /Scannow

Please share the information with me as this will determine our next steps.

We look forward to your reply.

Best Regards,

LucyW-MSFT | Microsoft Community Support Specialist