Почему не работает коммуникация между клиентом и сервером?

Код версии для клиента.

public class ClientCommunicator:TcpCommunicatorBase
    {
        public CustomSynchronizationContext SynchronizationContext { get; private set; }

        public ClientCommunicator(TcpClient client,Encoding enc) : base(client,enc)
        {
            SynchronizationContext=new CustomSynchronizationContext();
        }

        protected override void MessageRecievedAsyncCallback(IAsyncResult ar)
        {
            SynchronizationContext.Post((s) => base.MessageRecievedAsyncCallback(ar), null);
        }

        public override void SendMessage(string text)
        {
            SynchronizationContext.Post((s) =>
            {
                base.SendMessage(text);
                Debug.Print("From client");
            }, null);
        }

        public override void BeginListenForMessage()
        {
            SynchronizationContext.Post((s) => base.BeginListenForMessage(), null);
        }

        public override void EndListenForMessage()
        {
            SynchronizationContext.Post((s) => base.EndListenForMessage(), null);
        }

        public override void Dispose()
        {
            Disconect();
            SynchronizationContext.Dispose();
        }

        public override void ConnectAsync(string adres, int port)
        {
            SynchronizationContext.Post((S) =>
            {
                Timer connectTimer = new Timer(async (s) =>
                {
                    if (!_client.Connected)
                        await _client.ConnectAsync(adres, port);
                    if (_client.Connected)
                    {
                        OnConnectionCreated();
                    }
                }, null, 0, 5000);

                ConnectionCreated += (s, a) => { connectTimer?.Dispose(); };

            }, null);

        } 
    }

CustomSynchronizationContext брал отсюда https://habr.com/post/269985/