diff --git a/backend/src/SocketIO/LobbyManager/Classes/SocketUser.js b/backend/src/SocketIO/Classes/SocketUser.js
similarity index 100%
rename from backend/src/SocketIO/LobbyManager/Classes/SocketUser.js
rename to backend/src/SocketIO/Classes/SocketUser.js
diff --git a/backend/src/SocketIO/GameManager/ClientHandler.js b/backend/src/SocketIO/GameManager/ClientHandler.js
new file mode 100644
index 0000000..9806815
--- /dev/null
+++ b/backend/src/SocketIO/GameManager/ClientHandler.js
@@ -0,0 +1,37 @@
+const socketIO = require("socket.io");
+const SocketUser = require("../Classes/SocketUser");
+const LobbyManager = require("../LobbyManager/LobbyManager");
+
+class ClientHandler {
+    /** @param {socketIO.Socket} socket @param {LobbyManager} lobbyManager */
+    constructor(socket, lobbyManager) {
+        this.socket = socket;
+        this.lobbyManager = lobbyManager;
+
+        this.user = new SocketUser(
+            this.socket.request.session.user.id,
+            this.socket.request.session.user.username,
+            this.socket
+        );
+
+        this.socket.on("disconnect", () => { this.defaultDisconnect() })
+
+        this.checkForLobby();
+    }
+
+    checkForLobby(){
+        const isUserInLobby = this.lobbyManager.oldLobbys.some((lobby) =>
+            lobby.users.some((user) => user.id === this.user.id)
+        );
+    
+        if (!isUserInLobby) {
+            this.socket.disconnect();
+        }
+    }
+
+    defaultDisconnect(){
+        
+    }
+}
+
+module.exports = ClientHandler;
\ No newline at end of file
diff --git a/backend/src/SocketIO/LobbyManager/Classes/Lobby.js b/backend/src/SocketIO/LobbyManager/Classes/Lobby.js
index 34029c1..7bc2b9a 100644
--- a/backend/src/SocketIO/LobbyManager/Classes/Lobby.js
+++ b/backend/src/SocketIO/LobbyManager/Classes/Lobby.js
@@ -1,5 +1,5 @@
 const socketIO = require("socket.io");
-const SocketUser = require("./SocketUser");
+const SocketUser = require("../../Classes/SocketUser");
 const LobbyManager = require("../LobbyManager");
 const TemporaryLobby = require("./TemporaryLobby");
 
diff --git a/backend/src/SocketIO/LobbyManager/Classes/TemporaryLobby.js b/backend/src/SocketIO/LobbyManager/Classes/TemporaryLobby.js
index 87903d8..352f027 100644
--- a/backend/src/SocketIO/LobbyManager/Classes/TemporaryLobby.js
+++ b/backend/src/SocketIO/LobbyManager/Classes/TemporaryLobby.js
@@ -1,4 +1,6 @@
+const { Socket } = require("socket.io");
 const LobbyManager = require("../LobbyManager");
+const SocketUser = require("../../Classes/SocketUser");
 
 class TemporaryLobby{
     /** @param { string } code  @param {Array<SocketUser>} users @param {LobbyManager} lobbyManager*/
diff --git a/backend/src/SocketIO/LobbyManager/ClientHandler.js b/backend/src/SocketIO/LobbyManager/ClientHandler.js
index e962368..a529eb9 100644
--- a/backend/src/SocketIO/LobbyManager/ClientHandler.js
+++ b/backend/src/SocketIO/LobbyManager/ClientHandler.js
@@ -1,6 +1,6 @@
 const socketIO = require("socket.io");
 const LobbyManager = require("./LobbyManager");
-const SocketUser = require("./Classes/SocketUser");
+const SocketUser = require("../Classes/SocketUser");
 
 class ClientHandler {
     /** @param {socketIO.Socket} socket @param {LobbyManager} lobbyManager */
diff --git a/backend/src/SocketIO/LobbyManager/LobbyManager.js b/backend/src/SocketIO/LobbyManager/LobbyManager.js
index 52aa608..ba74840 100644
--- a/backend/src/SocketIO/LobbyManager/LobbyManager.js
+++ b/backend/src/SocketIO/LobbyManager/LobbyManager.js
@@ -1,6 +1,6 @@
 const socketIO = require("socket.io");
 const Lobby = require("./Classes/Lobby");
-const SocketUser = require("./Classes/SocketUser");
+const SocketUser = require("../Classes/SocketUser");
 const TemporaryLobby = require("./Classes/TemporaryLobby");
 
 class LobbyManager {
diff --git a/backend/src/SocketIO/SocketIOManager.js b/backend/src/SocketIO/SocketIOManager.js
index 32b0a86..de1398a 100644
--- a/backend/src/SocketIO/SocketIOManager.js
+++ b/backend/src/SocketIO/SocketIOManager.js
@@ -3,7 +3,8 @@ const http = require("http");
 const DataBaseManager = require("../Database/DataBaseManager");
 const ExpressManager = require("../Express/ExpressManager");
 const LobbyManager = require("./LobbyManager/LobbyManager");
-const ClientHandler = require("./LobbyManager/ClientHandler");
+const ClientHandlerLobby = require("./LobbyManager/ClientHandler");
+const ClientHandlerGame = require("./GameManager/ClientHandler");
 require("dotenv").config();
 
 class SocketIOManager {
@@ -27,7 +28,6 @@ class SocketIOManager {
 
         /*
             Der LobbyManager kümmert sich um alle Lobbys
-            Der LobbyHandler kümmert sich um die einzelnen Anfragen der Clients
          */
         this.lobbyManager = new LobbyManager(this.io);
 
@@ -61,7 +61,11 @@ class SocketIOManager {
         });
 
         socket.on("hereForLobby", () => {
-            new ClientHandler(socket, this.lobbyManager);
+            new ClientHandlerLobby(socket, this.lobbyManager);
+        });
+
+        socket.on("hereForGame", () => {
+            new ClientHandlerGame(socket, this.lobbyManager);
         });
     }
 }
diff --git a/frontend/game/scripts/index.js b/frontend/game/scripts/index.js
index 2c5af3f..b9eead3 100644
--- a/frontend/game/scripts/index.js
+++ b/frontend/game/scripts/index.js
@@ -15,12 +15,12 @@ class ServerConnectionManager {
 
         this.socket.on("connect_error", (error) => {
             console.log(error);
-            window.location.pathname = "/dashboard";
+            window.location.pathname = "/dashboard/lobby";
         });
 
         this.socket.on("disconnect", () => {
             console.log("Die verbindung wurde unterbrochen!");
-            window.location.pathname = "/dashboard";
+            window.location.pathname = "/dashboard/lobby";
         });
     }
 }