Windows 11无法投屏

Question

Win11使用Cast功能无法连接至电视机/投屏器，可以搜索到信号，但连接时一直显示Connecting，随后显示Couldn't Connect。在CMD中使用了netsh wlan show drivers命令，Wireless Display Supported: Yes (Graphics Driver: Yes, Wi-Fi Driver: Yes)，电脑是支持无线投屏的。请帮忙查看一下如何解决这个问题，谢谢。

已经做了如下尝试：

1.重装电脑显卡/WIFI/蓝牙驱动，依旧无法连接

2.每次连接时均已删除在Bluetooth&devices>Devices中的设备记录。

以下是电脑的版本信息

Edition Windows 11 Enterprise

Version 25H2

Installed on ‎2026/‎5/‎15

OS build 26200.8655

Experience Windows Feature Experience Pack 1000.26100.315.0

Answer 1

Hello Zhang,

Thank you for posting question on Microsoft Windows Forum!

Based on the issue description as well as the provided screenshots. The potential cause for the symptom highly probably points to a software-level blockage, most commonly a missing or corrupted Wireless Display feature, firewall/service issues, or a broken Wi‑Fi Direct virtual adapter.

The suggestion here is to verify Wireless Display feature. Windows 11 sometimes does not install the Wireless Display optional feature by default. You can navigate to Settings → System → Optional Features. Search for Wireless Display. If missing, click Add a feature and install it. Then restart your PC after installation. In case, Wireless Display exists. Click it and choose Remove, then restart the PC. After restart, go back, click View features (or “Add an optional feature”), search for Wireless Display, install it, and restart again. Then try casting once more.

Another suggestion is to check Network and Input settings. Since Casting requires both devices to be on the same Wi‑Fi and the TV set to the correct input. Ensure PC and TV are connected to the same Wi‑Fi network. On TV, manually set input to Screen Mirroring/Wireless Display. Avoid Ethernet on TV if PC is on Wi‑Fi. Also, try to verify the Wi‑Fi profile is “Private” (not Public). Since Miracast uses specific ports that are blocked on Public networks by default. Navigating to Settings → Network & internet → Wi‑Fi → (your network) properties → Set Network profile type to Private. If you are on Ethernet but the TV is connected via Wi‑Fi, make sure the network is still recognized as Private.

Please note: Enterprise builds sometimes enforce stricter firewall/group policies that block casting. If you are on a corporate network, check with IT for Miracast policy restrictions. In case, your TV does not support Miracast natively, you might need a Miracast adapter/dongle (HDMI plug-in). If none of these steps work, you can consider to test casting with another Windows 11 device on the same TV. If that succeeds, the issue is specific to your PC’s configuration.

You can consult the following articles for more information regarding the troubleshooting to this issue.

• https://support.microsoft.com/en-us/windows/fix-connections-to-wireless-displays-or-docks-in-windows-f6a7cd01-fdec-560c-4593-698a1b3098c4
• https://support.microsoft.com/en-us/windows/fix-connections-to-wireless-displays-or-docks-in-windows-f6a7cd01-fdec-560c-4593-698a1b3098c4

Hope the above information is helpful! If it is. Free feel to hit "Accept Answer" for benefitting others in community having the same issue too.