Hi,

The most obvious error that I see is that you use `std::vector<char> buffer_data(1024);`as local variables and then they are destroyed but you continue to keep references to them via the boost::asio::buffer.

The latter will not keep the `std::vector`s alive.

You need to keep the std::vector as a member variable and only when you call the asio functions use the `boost::asio::buffer` function.

Like
m_socketHandler->socket.async_read_some(boost::asio::buffer(m_buffer_data), ...

Where the m_buffer_data is a member variable of type `std::vector<char>`.

HTH,

Pavel.