Good morning,
Being used to programming UDP or TCP sockets, I wanted to connect to the TCI server of my SunSDR DX on port 50001.
My attempts were unsuccessful.
Does anyone have any advice for me on how to make this connection.
THANKS

I would recommend that you take a look at the tciadapter program: github.com/ftl/tciadapter
There is also a Python demo of ExpertSDR: github.com/rn3kk/expertsdr_tci
I wish you every success in programming with the TCi interface.
73 de Dieter, DK6OV

I am programming in .net / C# and use websocket-sharp.
Works very well.

Microsoft's System.Net.WebSockets.Client does work as well.

Best 73's
Eberhard, DK8JV