Question For geniuses, Holographic remoting for player mode doesn't work.

Hi, All.
Recently, I am trying to connect my pc to hololens2 for testing.
However, whenever I doing so, my hololens2 shows me just black display with 'Receiving...' text.
I runned it for 5 minutes, but nothings changed.
So I checked my unity, and game tab showed like below. (If it is in normal state, there should be my scene.)
Because I can see the display of my hololens2 is changing whenever I take play button, It seems like this situation is not because of network problem. maybe,,,
So is there anyone who can help me?
Thanks.

 

Yes. It runs v2.6.2 which is the latest one.