Question

When I tried to reestablish a connection to my Socket I get the following error :

Error : Only one usage of each socket address (protocol/network address/port) is normally permitted
SocketErrorCode : System.Net.Sockets.SocketError.AddressAlreadyInUse

Each time I want to reconnect, I first call the Disconnect() method. But even if my socket is disconnected I have an error when I tried to reconnect with the Connect() method.

    public SocketError Connect()
    {
        //Open socket connection
        SocketAsyncEventArgs connectArgs = new SocketAsyncEventArgs();

        connectArgs.UserToken = _socket;
        connectArgs.RemoteEndPoint = _hostEndPoint;
        connectArgs.Completed += OnConnect;

        _socket.ConnectAsync(connectArgs); //ERROR : Only one usage of each socket address...

        _autoConnectEvent.WaitOne();

        if (connectArgs.SocketError != SocketError.Success)
        {
            throw new SocketException((Int32)connectArgs.SocketError);
        }

        return connectArgs.SocketError;
    }


    public void Disconnect()
    {
        _socket.Shutdown(SocketShutdown.Both);
        _socket.Disconnect(true);
    }

Does anyone know how to avoid this error?

Answer 1

Explanation here : Only one usage of each socket address (protocol/network address/port) is normally permitted

Thanks @competent_tech