I’m trying to connect my Windows 10 PC to my TV by Miracast. When I try to connect, it loads for a while, the TV sees my request, but once I accept it, I get a generic “Could not connect” message on my PC. I’ve concluded a pretty length investigation into this issue so I’ll put my findings here.
First of all, my exact version is Windows 10 Home N, version 22h2 (compilation 19045.6466). My findings:
- The TV is an LGTV 49ub820v.
- I’ve installed the Media Feature Pack which would be absent in any version of Windows 10 N, I believe. I ran
Get-WindowsCapability -Online | Where-Object Name -like "*Media*"which returnedName : Media.MediaFeaturePack~~~~0.0.1.0 State : Installed - I’ve verified the TV (it’s an LGTV that accepts Miracast) is capable of being cast to by connecting to it with my phone.
- I’ve checked my wireless and graphics drivers allow it (in Spanish, but both report yes):
Monitor inalámbrico admitido: Sí (controlador de gráficos: Sí, controlador de Wi-Fi: Sí) - Checked the “optional characteristics” menu in Windows to see if there are any features for “wireless”, but none exist. It’s also not possible to add them in the “add characteristic” menu.
- Checked that WirelessDisplay is installed. It returned
Path :
Online : True
RestartNeeded : False
- The TV sees my connection attempt and I can accept it, but it fails in the Win+K projection menu with a “Could not connect” message. Nothing more descriptive than that. This shows to me that it’s failing pretty much right at the last step.
- I’m using a USB wifi adapter, the TPLink AC1300 Archer T3U, which definitely supports Miracast
- Updated my wifi adapter driver to the latest
- Tried both wifi bands. 2.4 and 5ghz on both the TV and my adapter.
- Tried two different wifi adapters.
- Verified that “Microsoft Wi‑Fi Direct Virtual Adapter” appears and is enabled in the device manager.
- Tried checking the event viewer for all Windows-related events around the time that I lasted attempted the connection, but found nothing.
- For some reason, dxdiag shows “Miracast: Not Supported by Graphics driver” in the report. My graphics card is an Nvidia RTX 4060. I’ve updated the drivers.
The graphics card question seems interesting to me. I’ve seen multiple people say that Nvidia’s recent drivers don’t support Miracast, but I haven’t been able to source that properly. I’ve also seen plenty of sources say the opposite. Would be interesting to try with another GPU, but the only other
It seems like everything is more or less functional, but I’ve run into a dead end on investigation. Short of just reinstalling Windows or maybe even trying a new GPU, I’m not sure what to do. Any suggestions for next steps? I have a WLAN report and a dxdiag report that I can share if needed.