diff --git a/config/webVersion.ts b/config/webVersion.ts
index 1a8bfde..689dab7 100644
--- a/config/webVersion.ts
+++ b/config/webVersion.ts
@@ -6,5 +6,5 @@
 2: Patch oder Hotfix (Bugfixes oder kleine Änderungen).
 
 */
-const webVersion = "1.6.173";
+const webVersion = "1.6.174";
 export default webVersion;
diff --git a/pages/_app.tsx b/pages/_app.tsx
index 55daf44..2acce75 100644
--- a/pages/_app.tsx
+++ b/pages/_app.tsx
@@ -4,7 +4,7 @@
 import { useEffect, useState } from "react";
 import { Provider } from "react-redux";
 import store, { useAppDispatch } from "../redux/store";
-import { loadWindowVariables } from "../utils/loadWindowVariables";
+import { checkSession } from "../utils/checkSession";
 import Header from "../components/header/Header";
 import Navigation from "../components/navigation/Navigation";
 import Footer from "../components/footer/Footer";
@@ -23,28 +23,16 @@ function MyApp({ Component, pageProps }: AppProps) {
 function AppContent({ Component, pageProps }: AppProps) {
   const dispatch = useAppDispatch();
   const [sessionExpired, setSessionExpired] = useState(false);
-
   useEffect(() => {
-    const loadAndStoreVariables = async () => {
-      try {
-        const variables = await loadWindowVariables();
-        if (!variables) throw new Error("Sitzungsfehler");
-
-        //console.log("✅ Window-Variablen geladen:", variables);
-
-        const { ...restVariables } = variables;
-
-        setSessionExpired(false);
-      } catch (error) {
-        console.error("❌ Fehler beim Laden der Sitzung:", error);
-        setSessionExpired(true);
-      }
+    const sessionChecker = async () => {
+      const ok = await checkSession();
+      setSessionExpired(!ok);
     };
 
     if (typeof window !== "undefined") {
-      loadAndStoreVariables();
+      sessionChecker();
 
-      const intervalId = setInterval(loadAndStoreVariables, 10000);
+      const intervalId = setInterval(sessionChecker, 10000);
       return () => clearInterval(intervalId);
     }
   }, []);
diff --git a/utils/checkSession.ts b/utils/checkSession.ts
new file mode 100644
index 0000000..4e5b23c
--- /dev/null
+++ b/utils/checkSession.ts
@@ -0,0 +1,14 @@
+// utils/checkSession.ts
+
+export async function checkSession(): Promise<boolean> {
+  try {
+    // Beispiel: prüfe ob ein erwartetes globales Fenster-Objekt noch existiert
+    const expectedGlobalVar = "win_kueID"; // oder "win_deviceName", je nach System
+
+    if (typeof window === "undefined") return false;
+
+    return window[expectedGlobalVar] !== undefined;
+  } catch (error) {
+    return false;
+  }
+}
diff --git a/utils/loadWindowVariables.ts b/utils/loadWindowVariables.ts
deleted file mode 100644
index 59d8eb0..0000000
--- a/utils/loadWindowVariables.ts
+++ /dev/null
@@ -1,86 +0,0 @@
-// /utils/loadWindowVariables.ts
-
-// ✅ Interface für `window`-Objekt zur TypeScript-Sicherheit
-interface CustomWindow extends Window {
-  [key: string]: any;
-}
-
-// ✅ Hauptfunktion zum Laden von `window`-Variablen
-export async function loadWindowVariables(): Promise<Record<string, any>> {
-  return new Promise((resolve, reject) => {
-    const requiredVars: string[] = [
-      "win_counter",
-      "win_flutter",
-      "win_kueOnline",
-      "win_kueID",
-      "win_kuePSTmMinus96V",
-      "win_kueAlarm1",
-      "win_kueAlarm2",
-      "win_kueIso",
-      "win_kueResidence",
-      "win_kueCableBreak",
-      "win_kueGroundFault",
-      "win_kueLimit1",
-      "win_kueLimit2Low",
-      "win_kueDelay1",
-      "win_kueLoopInterval",
-      "win_kueVersion",
-      "win_tdrAtten",
-      "win_tdrPulse",
-      "win_tdrSpeed",
-      "win_tdrAmp",
-      "win_tdrTrigger",
-      "win_tdrLocation",
-      "win_tdrActive",
-      "win_kueOverflow",
-      "win_tdrLast",
-      "win_appVersion",
-    ];
-
-    const scripts: string[] = ["kueData.js"];
-
-    const loadScript = (src: string): Promise<void> => {
-      return new Promise((resolve, reject) => {
-        const script = document.createElement("script");
-        const environment = process.env.NEXT_PUBLIC_NODE_ENV || "production";
-        script.src =
-          environment === "production"
-            ? `/CPL?/CPL/SERVICE/${src}`
-            : `/CPLmockData/SERVICE/${src}`;
-        script.async = true;
-        script.onload = () => resolve();
-        script.onerror = () => reject(new Error(`Script load error: ${src}`));
-        document.head.appendChild(script);
-      });
-    };
-
-    // ✅ Lade alle Skripte nacheinander
-    scripts
-      .reduce(
-        (promise, script) => promise.then(() => loadScript(script)),
-        Promise.resolve()
-      )
-      .then(() => {
-        const win = window as unknown as CustomWindow;
-
-        // ✅ Erstelle ein Objekt mit allen geladenen Variablen
-        const variablesObj: Record<string, any> = requiredVars.reduce(
-          (acc, variable) => {
-            if (win[variable] !== undefined) {
-              acc[variable.replace("win_", "")] = win[variable];
-            }
-            return acc;
-          },
-          {}
-        );
-
-        // ✅ Redux mit Systemvariablen aktualisieren
-
-        resolve(variablesObj);
-      })
-      .catch((error) => {
-        console.error("Fehler beim Laden eines Skripts:", error);
-        reject(error);
-      });
-  });
-}