Miracast not working? TV supports, PC supports and sees TV as device, just can't project

Question

I'm trying to mirror my desktop's screen on my TV, the setup is the following:

Windows 10 Pro Desktop connected to router via gigabit. LG Smart TV connected to the same router on wifi.ac

dxdiag confirmed Pc is Miracast capable - TV is miracast capable, works fine from my android phone.

In devices i can add the TV (actually i don't even need to as it automatically shows up as two devices one as a media cast destination the other as a miracast) devices

I can cast from Films & TV just fine.

If i try windows + P the project screen comes up, just nothing happens if i click on any of the options (duplicate, extend or 2nd only).

All drives and TV refreshed to latest.

What am i doing wrong here?

---

Turns DX diag reported (probably) the capability because i had once had a wifi card in my PC. Reinstalling the card made things work.

Also you should test the capability by Windows + K and not by Windows + P ! If you are capable to connect to wireless displays this will surefire tell you.

Films and TV: i dug into the topic and turns out in this case win 10 has a built in DLNA server to serve these requests, so it's not using miracast just plain old service discovery and push.

Answer 1

When you press Win+P, you need to select “Connect to a wireless display”. Which you can’t because you probably don’t have a wireless card.

Normal Miracast works over Wi-Fi Direct, a point-to-point link between the device and the display (or Miracast receiver). It does not use your regular network or your regular wireless network.

Microsoft also offers Miracast over Infrastructure, which uses the existing network to host the Miracast connection. However, it is very unlikely your TV supports this.