Bad: TCP C++ client and C# server not Working [closed]

  .net, c++, tpc

When I try to connect to the server successfully, but when a message from the client comes from to the server,

Bad: it turns out like this: "?}" and more.

This was not in C #. Tried utf16 and utf8, I pass the Json format to the server and get it back, but with data in C #, everything worked, but since it doesn’t work in C ++, tell me what am I doing wrong?
P.S I use Socket;
Google translate.

Source: Windows Questions C++