diff --git a/Cargo.lock b/Cargo.lock
index 4a92665..0aa13ac 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3465,6 +3465,7 @@ version = "0.1.0"
 dependencies = [
  "chrono",
  "protocol",
+ "s2n-quic",
  "serde",
  "serde_json",
  "tokio",
diff --git a/client/src/gui.rs b/client/src/gui.rs
index 1563cd9..c1839e2 100644
--- a/client/src/gui.rs
+++ b/client/src/gui.rs
@@ -1,14 +1,20 @@
-use std::sync::{Arc, RwLock};
+use std::{
+    sync::{Arc, RwLock},
+    time::Duration,
+};
 
 use iced::{
     Alignment::Center,
     Element, Task, Theme,
     widget::{button, column, row},
 };
-use protocol::BUFFER_LENGTH;
-use tokio::sync::{
-    broadcast::{self},
-    oneshot,
+use protocol::{BUFFER_LENGTH, Error};
+use tokio::{
+    sync::{
+        broadcast::{self},
+        oneshot,
+    },
+    time::sleep,
 };
 
 use crate::{ClientConfig, stream::connect, voice::record};
@@ -20,16 +26,40 @@ struct Signal {
     connection: Option<oneshot::Sender<bool>>,
 }
 
+impl Signal {
+    fn reset_microphone(&mut self) -> Result<(), Error> {
+        if let Some(microphone_signal) = &self.microphone {
+            if !microphone_signal.is_closed() {
+                self.microphone.take().expect("Never").send(true).unwrap();
+                self.microphone = None;
+                return Ok(());
+            }
+        }
+        Err(Error::Signal("Reset".to_string()))
+    }
+
+    fn reset_connection(&mut self) -> Result<(), Error> {
+        if let Some(connection_signal) = &self.connection {
+            if !connection_signal.is_closed() {
+                self.connection.take().expect("Never").send(true).unwrap();
+                self.connection = None;
+                return Ok(());
+            }
+        }
+        Err(Error::Signal("Reset".to_string()))
+    }
+}
+
 #[derive(Debug)]
 struct Channel {
-    microphone: broadcast::Sender<f32>,
+    microphone: Arc<broadcast::Sender<f32>>,
     // speaker: (broadcast::Sender<f32>, broadcast::Receiver<f32>),
 }
 
 impl Channel {
     fn new() -> Self {
         Self {
-            microphone: broadcast::channel(BUFFER_LENGTH).0,
+            microphone: broadcast::channel(BUFFER_LENGTH).0.into(),
             // speaker: broadcast::channel(BUFFER_LENGTH),
         }
     }
@@ -71,6 +101,18 @@ pub struct App {
 }
 
 impl App {
+    fn reset_microphone(&mut self) -> Result<(), Error> {
+        self.signal.reset_microphone()?;
+        self.gui_status.write().unwrap().microphone = State::Passive;
+        Ok(())
+    }
+
+    fn reset_connection(&mut self) -> Result<(), Error> {
+        self.signal.reset_connection()?;
+        self.gui_status.write().unwrap().room = State::Passive;
+        Ok(())
+    }
+
     pub fn theme(&self) -> Theme {
         Theme::Dark
     }
@@ -110,35 +152,37 @@ impl App {
                 self.gui_status.write().unwrap().room = State::Loading;
                 let client_config = self.client_config.clone();
                 let gui_status = self.gui_status.clone();
-                let microphone_receiver = self.channel.microphone.subscribe();
+                let microphone_sender_for_producing_receiver = self.channel.microphone.clone();
 
                 let connection_signal = oneshot::channel();
                 self.signal.connection = Some(connection_signal.0);
+                let is_connection_started_signal = oneshot::channel();
+                tokio::spawn(connect(
+                    connection_signal.1,
+                    is_connection_started_signal.0,
+                    microphone_sender_for_producing_receiver,
+                    client_config,
+                ));
+
+                let is_connection_started_task = tokio::spawn(is_connection_started_signal.1);
                 Task::perform(
-                    connect(connection_signal.1, microphone_receiver, client_config),
-                    move |result| match result {
-                        Ok(_) => gui_status.write().unwrap().room = State::Active,
-                        Err(err_val) => {
-                            eprintln!("Error: Join Room | {}", err_val);
-                            gui_status.write().unwrap().room = State::Passive;
+                    async move {
+                        match is_connection_started_task.await {
+                            Ok(_) => gui_status.write().unwrap().room = State::Active,
+                            Err(err_val) => {
+                                gui_status.write().unwrap().room = State::Passive;
+                                eprintln!("Error: Connection Task | {}", err_val);
+                            }
                         }
                     },
+                    |_| {},
                 )
                 .map(|_| Message::None)
             }
             Message::LeaveRoom => {
                 self.gui_status.write().unwrap().room = State::Loading;
-                if let Some(connection_signal) = &self.signal.connection {
-                    if !connection_signal.is_closed() {
-                        self.signal
-                            .connection
-                            .take()
-                            .expect("Never")
-                            .send(true)
-                            .unwrap();
-                        self.signal.connection = None;
-                        self.gui_status.write().unwrap().room = State::Passive;
-                    }
+                if let Err(err_val) = self.reset_connection() {
+                    eprintln!("Error: Leave Room | {}", err_val);
                 }
                 Task::none()
             }
@@ -165,17 +209,8 @@ impl App {
             }
             Message::MuteMicrophone => {
                 self.gui_status.write().unwrap().microphone = State::Loading;
-                if let Some(microphone_signal) = &self.signal.microphone {
-                    if !microphone_signal.is_closed() {
-                        self.signal
-                            .microphone
-                            .take()
-                            .expect("Never")
-                            .send(true)
-                            .unwrap();
-                        self.signal.microphone = None;
-                        self.gui_status.write().unwrap().microphone = State::Passive;
-                    }
+                if let Err(err_val) = self.reset_microphone() {
+                    eprintln!("Error: Mute Microphone | {}", err_val);
                 }
                 Task::none()
             }
diff --git a/client/src/stream.rs b/client/src/stream.rs
index 877ca9b..2e356dc 100644
--- a/client/src/stream.rs
+++ b/client/src/stream.rs
@@ -1,17 +1,22 @@
 use std::{net::SocketAddr, path::Path, sync::Arc};
 
 use protocol::{BUFFER_LENGTH, Error};
-use s2n_quic::{Client, client::Connect};
+use s2n_quic::{
+    Client,
+    client::Connect,
+    stream::{ReceiveStream, SendStream},
+};
 use tokio::{
-    io::AsyncReadExt,
+    io::{AsyncReadExt, AsyncWriteExt},
     sync::{broadcast, oneshot},
 };
 
 use crate::{ClientConfig, voice::play};
 
 pub async fn connect(
-    connection_signal: oneshot::Receiver<bool>,
-    mut microphone_receiver: broadcast::Receiver<f32>,
+    connection_stop_signal_receiver: oneshot::Receiver<bool>,
+    is_connection_started_signal: oneshot::Sender<bool>,
+    microphone_sender_for_producing_receiver: Arc<broadcast::Sender<f32>>,
     client_config: Arc<ClientConfig>,
 ) -> Result<(), Error> {
     let client = Client::builder()
@@ -45,40 +50,91 @@ pub async fn connect(
         .open_bidirectional_stream()
         .await
         .map_err(|err_val| Error::ConnectionSetup(err_val.to_string()))?;
-    let (mut receive_stream, mut send_stream) = stream.split();
+    let (receive_stream, send_stream) = stream.split();
+    let (speaker_sender, speaker_receiver) = broadcast::channel(BUFFER_LENGTH);
+    let (speaker_stop_signal_sender, speaker_stop_signal_receiver) = oneshot::channel();
+    tokio::spawn(play(speaker_receiver, speaker_stop_signal_receiver));
+    let receive_voice_data_task = tokio::spawn(receive_voice_data(receive_stream, speaker_sender));
+    let send_voice_data_task = tokio::spawn(send_voice_data(
+        send_stream,
+        microphone_sender_for_producing_receiver,
+    ));
 
-    let (speaker_sender, speaker_receiver) = broadcast::channel::<f32>(BUFFER_LENGTH);
-
-    let (spearker_stop_signal_sender, speaker_stop_signal_receiver) = oneshot::channel::<bool>();
-
-    let play_task = tokio::spawn(play(speaker_receiver, speaker_stop_signal_receiver));
-    let receive_task = tokio::spawn(async move {
-        while let Ok(data) = receive_stream.read_f32_le().await {
-            speaker_sender
-                .send(data)
-                .map_err(|err_val| Error::Signal(err_val.to_string()))
-                .unwrap();
-        }
-    });
-    let send_task = tokio::spawn(async move {
-        while let Ok(data) = microphone_receiver.recv().await {
-            send_stream
-                .send(data.to_le_bytes().to_vec().into())
-                .await
-                .map_err(|err_val| Error::Send(err_val.to_string()))
-                .unwrap();
-        }
-    });
-    if let Ok(_) = connection_signal.await {
-        println!("Connection Closing");
+    if let Err(err_val) = is_connection_started_signal.send(true) {
+        eprintln!(
+            "Error: Is Connection Started | Local Channel | Send | {}",
+            err_val
+        );
     }
-    spearker_stop_signal_sender
-        .send(true)
-        .map_err(|err_val| Error::Signal(err_val.to_string()))?;
 
-    send_task.abort();
-    receive_task.abort();
-    play_task.abort();
+    if let Err(err_val) = connection_stop_signal_receiver.await {
+        eprintln!(
+            "Error: Connection Stop Signal | Local Channel | Receive | {}",
+            err_val
+        );
+    }
+
+    if let Err(err_val) = speaker_stop_signal_sender.send(true) {
+        eprintln!(
+            "Error: Speaker Stop Signal | Local Channel | Send | {}",
+            err_val
+        );
+    }
+
+    println!("Connection Is Closing");
+
+    receive_voice_data_task.abort();
+    send_voice_data_task.abort();
+
+    println!("Connection Is Closed");
 
     Ok(())
 }
+
+async fn send_voice_data(
+    mut send_stream: SendStream,
+    microphone_sender_for_producing_receiver: Arc<broadcast::Sender<f32>>,
+) {
+    let mut microphone_receiver = microphone_sender_for_producing_receiver.subscribe();
+    loop {
+        match microphone_receiver.recv().await {
+            Ok(microphone_data) => {
+                if let Err(err_val) = send_stream.write_f32(microphone_data).await {
+                    eprintln!("Error: Send Microphone Data | {}", err_val);
+                    break;
+                }
+            }
+            Err(err_val) => {
+                eprintln!(
+                    "Error: Receive from Microphone | Local Channel | {}",
+                    err_val
+                );
+                match err_val {
+                    broadcast::error::RecvError::Closed => break,
+                    broadcast::error::RecvError::Lagged(_) => {
+                        microphone_receiver = microphone_receiver.resubscribe()
+                    }
+                }
+            }
+        }
+    }
+}
+async fn receive_voice_data(
+    mut receive_stream: ReceiveStream,
+    speaker_sender: broadcast::Sender<f32>,
+) {
+    loop {
+        match receive_stream.read_f32().await {
+            Ok(received_data) => {
+                if let Err(err_val) = speaker_sender.send(received_data) {
+                    eprintln!("Error: Send to Speaker | Local Channel | {}", err_val);
+                    break;
+                }
+            }
+            Err(err_val) => {
+                eprintln!("Error: Receive Data | {}", err_val);
+                break;
+            }
+        }
+    }
+}
diff --git a/client/src/voice.rs b/client/src/voice.rs
index bd65c2e..47f3f91 100644
--- a/client/src/voice.rs
+++ b/client/src/voice.rs
@@ -1,10 +1,12 @@
+use std::sync::Arc;
+
 use cpal::traits::{DeviceTrait, HostTrait, StreamTrait};
 use tokio::sync::{broadcast, oneshot};
 
 pub async fn record(
-    microphone_sender: broadcast::Sender<f32>,
+    microphone_sender: Arc<broadcast::Sender<f32>>,
     is_microphone_started_signal: oneshot::Sender<bool>,
-    microphone_stop_signal: oneshot::Receiver<bool>,
+    microphone_stop_signal_receiver: oneshot::Receiver<bool>,
 ) {
     let host = cpal::default_host();
     let input_device = host.default_input_device().unwrap();
@@ -12,7 +14,7 @@ pub async fn record(
 
     let input = move |data: &[f32], _: &cpal::InputCallbackInfo| {
         for &sample in data {
-            if microphone_sender.receiver_count() > 0 {
+            if microphone_sender.receiver_count() > 0 && sample != 0.0 {
                 if let Err(err_val) = microphone_sender.send(sample) {
                     eprintln!("Error: Microphone Send | {}", err_val);
                 }
@@ -30,7 +32,12 @@ pub async fn record(
     }
 
     tokio::task::block_in_place(|| {
-        let _ = microphone_stop_signal.blocking_recv();
+        if let Err(err_val) = microphone_stop_signal_receiver.blocking_recv() {
+            eprintln!(
+                "Error: Microphone Stop Signal | Local Channel | {}",
+                err_val
+            );
+        }
     });
 
     input_stream.pause().unwrap();
@@ -38,7 +45,7 @@ pub async fn record(
 
 pub async fn play(
     mut speaker_receiver: broadcast::Receiver<f32>,
-    speaker_stop_signal: oneshot::Receiver<bool>,
+    speaker_stop_signal_receiver: oneshot::Receiver<bool>,
 ) {
     let host = cpal::default_host();
     let output_device = host.default_output_device().unwrap();
@@ -49,7 +56,19 @@ pub async fn play(
             if speaker_receiver.len() > 0 {
                 match speaker_receiver.blocking_recv() {
                     Ok(received_sample) => *sample = received_sample,
-                    Err(err_val) => eprintln!("Error: Speaker Receive | {}", err_val),
+                    Err(err_val) => match err_val {
+                        broadcast::error::RecvError::Closed => {
+                            eprintln!("Error: Speaker Receive | Local Channel | Channel Closed");
+                            return;
+                        }
+                        broadcast::error::RecvError::Lagged(lag_amount) => {
+                            eprintln!(
+                                "Error: Speaker Receive | Local Channel | Lagging by -> {}",
+                                lag_amount
+                            );
+                            speaker_receiver = speaker_receiver.resubscribe();
+                        }
+                    },
                 }
             } else {
                 *sample = 0.0;
@@ -65,7 +84,12 @@ pub async fn play(
     println!("Playing Started");
 
     tokio::task::block_in_place(|| {
-        let _ = speaker_stop_signal.blocking_recv();
+        if let Err(err_val) = speaker_stop_signal_receiver.blocking_recv() {
+            eprintln!(
+                "Error: Speaker Stop Signal Receive | Local Channel | {}",
+                err_val
+            );
+        }
     });
 
     output_stream.pause().unwrap();
diff --git a/protocol/src/lib.rs b/protocol/src/lib.rs
index 4a6f03f..55ac856 100644
--- a/protocol/src/lib.rs
+++ b/protocol/src/lib.rs
@@ -7,7 +7,7 @@ use std::{
 
 use serde::{Deserialize, Serialize};
 
-pub const BUFFER_LENGTH: usize = 1024;
+pub const BUFFER_LENGTH: usize = 1024 * 8;
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub enum Error {
diff --git a/server/Cargo.toml b/server/Cargo.toml
index 53ecf78..e536fad 100644
--- a/server/Cargo.toml
+++ b/server/Cargo.toml
@@ -9,3 +9,4 @@ serde = { workspace = true }
 serde_json = { workspace = true }
 chrono = { workspace = true }
 tokio = { workspace = true }
+s2n-quic = { workspace = true }
diff --git a/server/src/lib.rs b/server/src/lib.rs
index 7a26447..c6326ed 100644
--- a/server/src/lib.rs
+++ b/server/src/lib.rs
@@ -1,4 +1,18 @@
+pub mod stream;
+
 #[derive(Debug)]
-struct ServerConfig {
+pub struct ServerConfig {
+    certificate_path: String,
+    certificate_key_path: String,
     server_address: String,
 }
+
+impl ServerConfig {
+    pub fn new() -> Self {
+        Self {
+            certificate_path: "./server/certificates/cert.pem".to_string(),
+            certificate_key_path: "./server/certificates/key.pem".to_string(),
+            server_address: "127.0.0.1:4546".to_string(),
+        }
+    }
+}
diff --git a/server/src/main.rs b/server/src/main.rs
index 7e3d561..602a33c 100644
--- a/server/src/main.rs
+++ b/server/src/main.rs
@@ -1,4 +1,8 @@
+use server::{ServerConfig, stream::start};
+
 #[tokio::main]
 async fn main() {
     println!("Hello, world!");
+    let server_config = ServerConfig::new();
+    start(server_config).await;
 }
diff --git a/server/src/stream.rs b/server/src/stream.rs
new file mode 100644
index 0000000..fdecd4f
--- /dev/null
+++ b/server/src/stream.rs
@@ -0,0 +1,105 @@
+use std::{path::Path, sync::LazyLock};
+
+use protocol::BUFFER_LENGTH;
+use s2n_quic::{
+    Connection, Server,
+    stream::{ReceiveStream, SendStream},
+};
+use tokio::{
+    io::AsyncReadExt,
+    sync::{RwLock, broadcast},
+};
+
+use crate::ServerConfig;
+
+#[derive(Debug)]
+struct User {
+    sender_to_user: broadcast::Sender<f32>,
+}
+impl User {
+    fn new() -> (Self, broadcast::Receiver<f32>) {
+        let (sender, receiver) = broadcast::channel(BUFFER_LENGTH);
+        let user = Self {
+            sender_to_user: sender,
+        };
+        (user, receiver)
+    }
+}
+
+static ONLINE_USERS: LazyLock<RwLock<Vec<User>>> = LazyLock::new(|| RwLock::new(vec![]));
+
+pub async fn start(server_config: ServerConfig) {
+    let mut server = Server::builder()
+        .with_io(server_config.server_address.as_str())
+        .unwrap()
+        .with_tls((
+            Path::new(&server_config.certificate_path),
+            Path::new(&server_config.certificate_key_path),
+        ))
+        .unwrap()
+        .start()
+        .unwrap();
+
+    while let Some(connection) = server.accept().await {
+        tokio::spawn(handle_client(connection));
+    }
+}
+
+async fn handle_client(mut connection: Connection) {
+    println!(
+        "Server Name = {}",
+        connection.server_name().unwrap().unwrap().to_string()
+    );
+
+    println!(
+        "Client Address = {}",
+        connection.remote_addr().unwrap().to_string()
+    );
+
+    let stream = connection
+        .accept_bidirectional_stream()
+        .await
+        .unwrap()
+        .unwrap();
+    let (receive_stream, send_stream) = stream.split();
+    let (user, receiver) = User::new();
+    ONLINE_USERS.write().await.push(user);
+    tokio::spawn(receive_sound_data(receive_stream));
+    tokio::spawn(send_sound_data(receiver, send_stream));
+}
+
+async fn send_sound_data(mut receiver: broadcast::Receiver<f32>, mut send_stream: SendStream) {
+    loop {
+        match receiver.recv().await {
+            Ok(received_data) => {
+                if let Err(err_val) = send_stream
+                    .send(received_data.to_be_bytes().to_vec().into())
+                    .await
+                {
+                    eprintln!("Error: Send Sound Data | {}", err_val);
+                }
+            }
+            Err(err_val) => {
+                eprintln!("Error: Receive Sound Data | Local Channel | {}", err_val);
+                break;
+            }
+        }
+    }
+}
+async fn receive_sound_data(mut receive_stream: ReceiveStream) {
+    loop {
+        match receive_stream.read_f32().await {
+            Ok(received_data) => {
+                for online_user in ONLINE_USERS.read().await.iter() {
+                    if let Err(err_val) = online_user.sender_to_user.send(received_data) {
+                        eprintln!("Error: Send Sound Data to All | {}", err_val);
+                    }
+                }
+            }
+            Err(err_val) => {
+                eprintln!("Error: Receive Sound Data | {} ", err_val);
+                break;
+            }
+        }
+    }
+}