With all your mega gear this is surely something you could rectify?I only got a really crappy router at the moment, I was thinking of trying my motherboard wireless to see if that would work at all

If you search this thread for my recent posts you’ll see what I’ve got set up to sort this exact thing for my oculus - a WiFi 6 router (bought a pair and have linked them through the house via an Ethernet cable) right next to my pc for streaming to the oculus.
edit - see my posts from here
Images of items I have purchased.
Perhaps overkill and maybe the pc streaming will work! Give it a try!