Cupeamer

hi..i'm using focus3 to test some scene. Unity version is 2020.3.41 . wave sdk version is 5.0.3-r5. when i use wifi to directpreview, no image in my hmd,only show the message tip ."Conneciton is time out". then i change to use usb , alway show the same tip. but in the two model. i can do every thing by controller, just no image. what's wrong in my PC or any config?