Quote Originally Posted by Cruz View Post
Hello! It sounds to me like your problem is related to buffer sizes. 370 bytes is really not much and possibly it is not enough to fill a buffer enough for the network layer to pass on data to the application layer. Buffers can have different sizes on different machines. What happens if you artificially enlarge your packet size? Do you get the readyRead() signal then?
Greetings!
I think that's not the problem. I have sent packets of different lengths and nothing ever changed.
However now I am working with a laptop and everythings goes fine...
Also I can tell that I have changed the buffer size within the driver and it did not help as well.

However I will try your advice today - thank you very much