Holographic Emulation: Remote to Device doesn't work

unable to start Holographic Emulation for Hololens.

After inserting the correct Hololens IP into Remote Machine field and pressing connect - instant error Failed to connect to remote device HRESULT = 0x8000FFFF

This error comes so fast that I’ll never believe that it even trying to connect to.
Connection station is always: Red Disconnected ( i saw in some topics that it has to be changed to yellow with message “Connecting”)

In console this error got the following description:
UnityException: Failed to connect to remote device HRESULT = 0x8000FFFF
UnityEditor.HolographicEmulation.HolographicEmulationWindow.Connect () (at C:/buildslave/unity/build/Editor/Mono/PerceptionRemoting/HolographicEmulation/HolographicEmulationWindow.cs:153)
UnityEditor.HolographicEmulation.HolographicEmulationWindow.HandleButtonPress () (at C:/buildslave/unity/build/Editor/Mono/PerceptionRemoting/HolographicEmulation/HolographicEmulationWindow.cs:176)
UnityEditor.HolographicEmulation.HolographicEmulationWindow.ConnectionStateGUI () (at C:/buildslave/unity/build/Editor/Mono/PerceptionRemoting/HolographicEmulation/HolographicEmulationWindow.cs:277)
UnityEditor.HolographicEmulation.HolographicEmulationWindow.OnGUI () (at C:/buildslave/unity/build/Editor/Mono/PerceptionRemoting/HolographicEmulation/HolographicEmulationWindow.cs:332)
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)

Then I’m trying to Run the application in Editor with this window opened, in that case I receiving fooling error messages:

Can’t create HolographicSpace because no connection to remote device!
Can’t create HolographicSpace because no connection to remote device!

To be clear, I can normally access this device via web device portal by the used IP as far as my hololens and PC are in the same network. Only the strange thing, that ping from PC fails to reach the device.

I’m just wondering does anybody could help me with this case?

same problem

change your graphics API for windows to DX11
if you set auto, also set DX11 once, then auto