I am using a Netgear Nighthawk R6700-v3 Router with a 5G network.
My computer specs are
AMD Ryzen 7 3800X, 32.0GB Dual-Channel ram, MSI MPG X570 GAMING EDGE WIFI (MS-7C37), 4GB NVIDIA GeForce RTX 2070 (PNY), SATA 3 hard drive, Windows 10 pro, and wired ethernet to router.
Maybe it's a bandwidth issue.
I've opened the new version via Virutal Desktop and it works right away. The older version the screen was black because the Steamvr is activated before the program opens. The program shows a config/launch window on the host computer. You have to open Virtual Desktop options on quest controller left, then quit Steamvr. Then open the desktop of the host computer, run the program via config/launch window and It opened for me.