Win10 problem with miracast/wifi adapter
I've recently upgraded my rig to i9 and have graphic card 1070 supporting miracast so I've decided let's try it.
I've checked all online guides how to check if my PC can do it. Dxdiag says yes, my card and mainboard support it but my Wi-Fi is not. Apparently my NDIS is 6.20 and should be 6.30+ and I could not find a way to update it. I have some old realtek Wi-Fi dongle.
Now it's a confusing part. Whenever I read guides they say that in such case just buy Microsoft wifi display adapter. I've checked this pricy gizmo but manual says plug it into your TV/whatever. What gives? My TV is fine, it's my PC Wi-Fi that's not supporting it.
I don't want to make any bad purchases, can someone help me with this matter? Should I just buy new wifi dongle or this microsoft adapter or what? Or is there a way to update my NDIS manually, because reinstalling Wi-Fi adapter didn't worked. Thanks!
Posted Dec 22, 2019, 10:03 AM UTC
The source (your computer) needs to have a Wi-Fi adapter that supports NDIS 6.3. The Wi-Fi Display Adapter is for the sink (the TV) and you don't need that, as long as your TV already supports Miracast.
You could try updating your Wi-Fi driver although given that it's Realtek, that might not do anything. If that doesn't work, I'd recommend buying an Intel PCIe Wi-Fi adapter.
And be aware that Miracast doesn't support HDCP. I use it to cast locally stored AVI files, but anything from Netflix of the Windows Store will just report a lack of HDCP support.
Alright so I've managed to borrow pcie wifi card that have drivers 6.8 or something around that. I finally got my casting options visible in PC but there is another problem with no solution online. PC don't see LG TV (55b8pla) as available display device but as either media center or rendering device. Somehow I can easily see neighbour's Samsung tv (that's not in my wifi network) when I select remote display.
Also TV can see my computer's shared media files but all I want is to duplicate my screen/share it.
You might have to set up your TV first. Try following this guide (method 2).