Hello, @hucbr600
I encountered the same situation like yours, trying all the methods and failed.
However, while testing with different wifi, it worked.
I tried with my iPhone hotspot, it worked.
Then I tried the other type of wifi (2.4G) from the same wifi in my house, it worked as well.
The other type I mentioned above is that, there are two types of wifi from my home wifi, which are 5G and 2.4G respectively. I am not an network expert, there are two wifi connection I can use from the same wifi machine anyway.
The point here for @lea is, my 5G wifi worked fine originally, but the problem occurred in early or mid-December.
Now, whenever I want to use Spacedesk, I cannot use 5G wifi.
Maybe you can inform your team about this?