diff --git a/Playvoi.Client/Assets/_Hub/Scripts/Network/NetworkClient.cs b/Playvoi.Client/Assets/_Hub/Scripts/Network/NetworkClient.cs
index 1776e35..c2e267e 100644
--- a/Playvoi.Client/Assets/_Hub/Scripts/Network/NetworkClient.cs
+++ b/Playvoi.Client/Assets/_Hub/Scripts/Network/NetworkClient.cs
@@ -19,6 +19,8 @@ namespace _Hub.Scripts.Network
         private NetPeer _netPeer;
         private NetDataWriter _netDataWriter;
 
+        public static System.Action OnServerConnected;
+
         #endregion
 
         private void Awake()
@@ -45,6 +47,7 @@ namespace _Hub.Scripts.Network
 
         private void Init()
         {
+            _netDataWriter = new NetDataWriter();
             _netManager = new NetManager(this)
             {
                 DisconnectTimeout = 100000
@@ -57,16 +60,20 @@ namespace _Hub.Scripts.Network
             _netManager.Connect("localhost", 9050, "");
         }
 
-        public void SendServer(string data)
+        public void SendServer<T>(T packet, DeliveryMethod deliveryMethod = DeliveryMethod.ReliableOrdered)
+            where T : INetSerializable
         {
-            var bytes = Encoding.UTF8.GetBytes(data);
-            _netPeer.Send(bytes, DeliveryMethod.ReliableOrdered);
+            if (_netPeer == null) return;
+            _netDataWriter.Reset();
+            packet.Serialize(_netDataWriter);
+            _netPeer.Send(_netDataWriter, deliveryMethod);
         }
 
         public void OnPeerConnected(NetPeer peer)
         {
             Debug.Log("We connect to server at " + peer.Address);
             _netPeer = peer;
+            OnServerConnected?.Invoke();
         }
 
         public void OnPeerDisconnected(NetPeer peer, DisconnectInfo disconnectInfo)
diff --git a/Playvoi.Client/Assets/_Hub/Scripts/UI/LoginUI.cs b/Playvoi.Client/Assets/_Hub/Scripts/UI/LoginUI.cs
index cbbe5e7..c190c3b 100644
--- a/Playvoi.Client/Assets/_Hub/Scripts/UI/LoginUI.cs
+++ b/Playvoi.Client/Assets/_Hub/Scripts/UI/LoginUI.cs
@@ -3,6 +3,7 @@ using System.Collections;
 using System.Text.RegularExpressions;
 using _Hub.Scripts.Network;
 using _Network.Auth;
+using _Network.Shared.Packets.ClientServer;
 using UnityEngine;
 
 namespace _Hub.Scripts.UI
@@ -29,6 +30,16 @@ namespace _Hub.Scripts.UI
 
         #region Unity
 
+        private void OnEnable()
+        {
+            NetworkClient.OnServerConnected += OnServerConnected;
+        }
+
+        private void OnDisable()
+        {
+            NetworkClient.OnServerConnected -= OnServerConnected;
+        }
+
         private void Start()
         {
             AddListeners();
@@ -43,7 +54,8 @@ namespace _Hub.Scripts.UI
 
         private void OnLoginClick()
         {
-
+            StopCoroutine(nameof(LoginRoutine));
+            StartCoroutine(nameof(LoginRoutine));
         }
 
         private IEnumerator LoginRoutine()
@@ -57,8 +69,13 @@ namespace _Hub.Scripts.UI
                 yield return null;
             }
 
-            Debug.Log("Connected to server");
-            var authRequest = "authRequestObject";
+            Debug.Log("Connected to server ehm");
+            var authRequest = new NetAuthRequest()
+            {
+                Username = _username,
+                Password = _password
+            };
+            
             NetworkClient.Instance.SendServer(authRequest);
         }
 
@@ -118,5 +135,14 @@ namespace _Hub.Scripts.UI
         }
 
         #endregion
+
+        #region Callbacks
+
+        private void OnServerConnected()
+        {
+            _isConnected = true;
+        }
+
+        #endregion
     }
 }
\ No newline at end of file
diff --git a/Playvoi.Client/Assets/_Network/Shared/Enum.meta b/Playvoi.Client/Assets/_Network/Shared/Enum.meta
new file mode 100644
index 0000000..e1558ed
--- /dev/null
+++ b/Playvoi.Client/Assets/_Network/Shared/Enum.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: fbb8907d6f34c354aa4f0e75c161f93e
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Playvoi.Client/Assets/_Network/Shared/PacketType.cs b/Playvoi.Client/Assets/_Network/Shared/Enum/PacketType.cs
similarity index 69%
rename from Playvoi.Client/Assets/_Network/Shared/PacketType.cs
rename to Playvoi.Client/Assets/_Network/Shared/Enum/PacketType.cs
index 66ec7b9..9a8c75f 100644
--- a/Playvoi.Client/Assets/_Network/Shared/PacketType.cs
+++ b/Playvoi.Client/Assets/_Network/Shared/Enum/PacketType.cs
@@ -3,11 +3,13 @@
     public enum PacketType : byte
     {
         #region ClientServer
-
+        Invalid = 0,
+        AuthRequest = 1,
         #endregion
 
         #region ServerClient
-
+        OnAuth = 100,
+        
         #endregion
     }
 }
\ No newline at end of file
diff --git a/Playvoi.Client/Assets/_Network/Shared/PacketType.cs.meta b/Playvoi.Client/Assets/_Network/Shared/Enum/PacketType.cs.meta
similarity index 100%
rename from Playvoi.Client/Assets/_Network/Shared/PacketType.cs.meta
rename to Playvoi.Client/Assets/_Network/Shared/Enum/PacketType.cs.meta
diff --git a/Playvoi.Client/Assets/_Network/Shared/Interface.meta b/Playvoi.Client/Assets/_Network/Shared/Interface.meta
new file mode 100644
index 0000000..751f809
--- /dev/null
+++ b/Playvoi.Client/Assets/_Network/Shared/Interface.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: ee61b43b2afff504abea4055e83605ff
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Playvoi.Client/Assets/_Network/Shared/Interface/INetPacket.cs b/Playvoi.Client/Assets/_Network/Shared/Interface/INetPacket.cs
new file mode 100644
index 0000000..dee7327
--- /dev/null
+++ b/Playvoi.Client/Assets/_Network/Shared/Interface/INetPacket.cs
@@ -0,0 +1,9 @@
+using LiteNetLib.Utils;
+
+namespace _Network.Shared.Interface
+{
+    public interface INetPacket : INetSerializable
+    {
+        PacketType Type { get; }
+    }
+}
\ No newline at end of file
diff --git a/Playvoi.Client/Assets/_Network/Shared/Interface/INetPacket.cs.meta b/Playvoi.Client/Assets/_Network/Shared/Interface/INetPacket.cs.meta
new file mode 100644
index 0000000..b2ec302
--- /dev/null
+++ b/Playvoi.Client/Assets/_Network/Shared/Interface/INetPacket.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: ab288e842f62469788a2b0811c294220
+timeCreated: 1768665506
\ No newline at end of file
diff --git a/Playvoi.Client/Assets/_Network/Shared/Packets.meta b/Playvoi.Client/Assets/_Network/Shared/Packets.meta
new file mode 100644
index 0000000..41430db
--- /dev/null
+++ b/Playvoi.Client/Assets/_Network/Shared/Packets.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 2b754838f9447ee4b9cc708148d658e2
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Playvoi.Client/Assets/_Network/Shared/Packets/ClientServer.meta b/Playvoi.Client/Assets/_Network/Shared/Packets/ClientServer.meta
new file mode 100644
index 0000000..0162819
--- /dev/null
+++ b/Playvoi.Client/Assets/_Network/Shared/Packets/ClientServer.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 89251cdbef042a34c999fc1bb6f5ff08
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Playvoi.Client/Assets/_Network/Shared/Packets/ClientServer/NetAuthRequest.cs b/Playvoi.Client/Assets/_Network/Shared/Packets/ClientServer/NetAuthRequest.cs
new file mode 100644
index 0000000..d9bb865
--- /dev/null
+++ b/Playvoi.Client/Assets/_Network/Shared/Packets/ClientServer/NetAuthRequest.cs
@@ -0,0 +1,25 @@
+using _Network.Shared.Interface;
+using LiteNetLib.Utils;
+
+namespace _Network.Shared.Packets.ClientServer
+{
+    public class NetAuthRequest : INetPacket
+    {
+        public PacketType Type => PacketType.AuthRequest;
+        public string Username { get; set; }
+        public string Password { get; set; }
+
+        public void Serialize(NetDataWriter writer)
+        {
+            writer.Put((byte)Type);
+            writer.Put(Username);
+            writer.Put(Password);
+        }
+
+        public void Deserialize(NetDataReader reader)
+        {
+            Username = reader.GetString();
+            Password = reader.GetString();
+        }
+    }
+}
\ No newline at end of file
diff --git a/Playvoi.Client/Assets/_Network/Shared/Packets/ClientServer/NetAuthRequest.cs.meta b/Playvoi.Client/Assets/_Network/Shared/Packets/ClientServer/NetAuthRequest.cs.meta
new file mode 100644
index 0000000..31f3c3e
--- /dev/null
+++ b/Playvoi.Client/Assets/_Network/Shared/Packets/ClientServer/NetAuthRequest.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 140b105efcb547b9b2569a8397d1b5c3
+timeCreated: 1768665577
\ No newline at end of file
diff --git a/Playvoi.Client/Assets/_Network/Shared/Packets/ServerClient.meta b/Playvoi.Client/Assets/_Network/Shared/Packets/ServerClient.meta
new file mode 100644
index 0000000..435de75
--- /dev/null
+++ b/Playvoi.Client/Assets/_Network/Shared/Packets/ServerClient.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: d0c882ddf9c547449a598cd104ab03e3
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Playvoi.Server/Playvoi.Server/Playvoi.Server/bin/Release/net9.0/Playvoi.Server.dll b/Playvoi.Server/Playvoi.Server/Playvoi.Server/bin/Release/net9.0/Playvoi.Server.dll
index 711d3dd..223e4d1 100644
Binary files a/Playvoi.Server/Playvoi.Server/Playvoi.Server/bin/Release/net9.0/Playvoi.Server.dll and b/Playvoi.Server/Playvoi.Server/Playvoi.Server/bin/Release/net9.0/Playvoi.Server.dll differ
diff --git a/Playvoi.Server/Playvoi.Server/Playvoi.Server/bin/Release/net9.0/Playvoi.Server.exe b/Playvoi.Server/Playvoi.Server/Playvoi.Server/bin/Release/net9.0/Playvoi.Server.exe
index aeec290..2beda16 100644
Binary files a/Playvoi.Server/Playvoi.Server/Playvoi.Server/bin/Release/net9.0/Playvoi.Server.exe and b/Playvoi.Server/Playvoi.Server/Playvoi.Server/bin/Release/net9.0/Playvoi.Server.exe differ
diff --git a/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/Playvoi.Server.AssemblyInfo.cs b/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/Playvoi.Server.AssemblyInfo.cs
index 0f44da5..c0b2ea2 100644
--- a/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/Playvoi.Server.AssemblyInfo.cs
+++ b/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/Playvoi.Server.AssemblyInfo.cs
@@ -13,7 +13,7 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("Playvoi.Server")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Release")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+ab729d1a2f9f4195576893a393b5d11c62f69313")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+b235ed3cf822640f9cb6664137db4bc06b729f93")]
 [assembly: System.Reflection.AssemblyProductAttribute("Playvoi.Server")]
 [assembly: System.Reflection.AssemblyTitleAttribute("Playvoi.Server")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
diff --git a/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/Playvoi.Server.AssemblyInfoInputs.cache b/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/Playvoi.Server.AssemblyInfoInputs.cache
index e46a33f..0137507 100644
--- a/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/Playvoi.Server.AssemblyInfoInputs.cache
+++ b/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/Playvoi.Server.AssemblyInfoInputs.cache
@@ -1 +1 @@
-98eff605502050ea012292e318729166e39cf9aa8ce58a266dabc44ef5c20548
+4bbd7f6de641cc43d39e9f91fda78ddd9b82cd18e65412f51bc2c09be924e288
diff --git a/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/Playvoi.Server.dll b/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/Playvoi.Server.dll
index 711d3dd..223e4d1 100644
Binary files a/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/Playvoi.Server.dll and b/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/Playvoi.Server.dll differ
diff --git a/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/apphost.exe b/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/apphost.exe
index aeec290..2beda16 100644
Binary files a/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/apphost.exe and b/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/apphost.exe differ
diff --git a/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/ref/Playvoi.Server.dll b/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/ref/Playvoi.Server.dll
index f1aa9ab..fb94aef 100644
Binary files a/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/ref/Playvoi.Server.dll and b/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/ref/Playvoi.Server.dll differ
diff --git a/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/refint/Playvoi.Server.dll b/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/refint/Playvoi.Server.dll
index f1aa9ab..fb94aef 100644
Binary files a/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/refint/Playvoi.Server.dll and b/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/Release/net9.0/refint/Playvoi.Server.dll differ
diff --git a/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/rider.project.model.nuget.info b/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/rider.project.model.nuget.info
index a153fd6..12d1865 100644
--- a/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/rider.project.model.nuget.info
+++ b/Playvoi.Server/Playvoi.Server/Playvoi.Server/obj/rider.project.model.nuget.info
@@ -1 +1 @@
-17686021595132556
\ No newline at end of file
+17686021599175449
\ No newline at end of file