[C#] Packet receive problem

Hi, today i wanted to try making some stuff using the C# nostale crypto adaptation i've shared, crypto seems to work but i'm stuck with sockets.

I've this code

Code:

if (packet.Header == "OK")
{
    SendPacket("game_start");
    _pulseTimer.Start();

    Task.Run(() =>
    {
        while (_client.Connected)
        {
            packets = ReceivePackets();

            foreach (string value in packets)
            {
                PacketReceived?.Invoke(this, new Packet(value));
            }
        }
    });
    return true;
}

It's for receiving all packets and fire an event

Code:

private void OnPacketReceived(object sender, Packet packet)
{
    Console.WriteLine(packet.Header);
}

But the problem is sometime (most of the time) i'm only receiving these packets and the socket don't read anymore after

Code:

tit
info
fd
fd
c_info
c_info_reset
equip
lev
stat
ski
at
c_map
sc
cond
pairy
rsfi
rage
rank_cool
clinit
flinit
kdlinit

That's my receive packets method

Code:

private List<string> ReceivePackets()
{
    var bytes = new byte[_client.ReceiveBufferSize];
    int size = _stream.Read(bytes, 0, bytes.Length);
    return Decrypt(bytes, size);
}

#Decrypt is just a method who use the correct Decrypt method according if we are on login server or world server.

I believe it's because the #Read method is blocked waiting for something from the server but idk what's the problem

Thanks in advance for your help, i'm beginner to this kind of stuff (socket etc..)

Edit : I'm posting this here because i'm not sure if it's a C# general question or just something i'm missing about nostale server (like sending a packet or something like this)