diff --git a/src/ArduinoProxy.ts b/src/ArduinoProxy.ts
index b4fc67b..d9ce88c 100644
--- a/src/ArduinoProxy.ts
+++ b/src/ArduinoProxy.ts
@@ -1,4 +1,4 @@
-import SerialPort from "serialport";
+import { SerialPort } from 'serialport'
 import debug from "debug";
 import {ArduinoProxyPayload} from "./ArduinoProxyPayload";
 import {Utils} from "./Utils";
@@ -30,23 +30,26 @@ export class ArduinoProxy {
 
     public static connect() {
         return new Promise<void>(async (resolve, reject) => {
-            // @ts-ignore
-            let list = await SerialPort.list()
+            log("Connecting to arduino...");
+            let list = await SerialPort.list();
 
             let arduino = list.find((ele) => {
                 return ele.manufacturer == "Arduino";
             });
+
             if (!arduino) {
+                log("No arduino found!");
                 return reject("No arduino found. Is it plugged in?");
             }
 
+
             // @ts-ignore
             this.serialPort = new SerialPort({
                 path: arduino.path,
                 baudRate: 9600,
                 autoOpen: false,
             });
-
+            log("Opening serial port...");
             this.serialPort.open((err: Error | null | undefined) => {
                 if (err) {
                     log("Error whilst connecting to proxy (open serial-connection)");
diff --git a/src/RequestType.ts b/src/RequestType.ts
index 08f507f..19f3de6 100644
--- a/src/RequestType.ts
+++ b/src/RequestType.ts
@@ -8,4 +8,5 @@ export enum RequestType {
     DOWNLOAD_DRINKS = "DOWNLOAD_DRINKS",
     TARE = "TARE",
     CHECK = "CHECK",
+    UPDATE = "UPDATE",
 }
\ No newline at end of file
diff --git a/src/routes/ws/websocketRoute.ts b/src/routes/ws/websocketRoute.ts
index 75c4cd2..25e54a5 100644
--- a/src/routes/ws/websocketRoute.ts
+++ b/src/routes/ws/websocketRoute.ts
@@ -160,7 +160,7 @@ router.ws('/', async (ws, req, next) => {
                         break;
                     }
                     case RequestType.CHECK: {
-                        let conf = msg.data as {
+                        let conf = msg.data.data as {
                             "led_enabled": boolean,
                             "remote_enabled": boolean,
                             "hotspot_enabled": boolean,
@@ -171,7 +171,6 @@ router.ws('/', async (ws, req, next) => {
 
                         await SensorHelper.clearAllRawMeasurements();
 
-
                         let content: { success: boolean, msg: string } = {
                             success: true,
                             msg: "Prüfung erfolgreich."
@@ -180,9 +179,16 @@ router.ws('/', async (ws, req, next) => {
                         // Check config
                         /// Check Proxy
                         if (conf["arduino_proxy_enabled"]) {
+                            try {
+                                await ArduinoProxy.disconnect();
+                            } catch( e )
+                            {
+
+                            }
                             try {
                                 await ArduinoProxy.connect();
                             } catch (e) {
+                                log("Checkup failed");
                                 content.success = false;
                                 content.msg = "Bei der Kommunikation mit dem Arduino Proxy ist ein Fehler aufgetreten.<br>Technische Details: " + e;
                                 return WebSocketHandler.answerRequest(msg.data["type"] as RequestType, content);
@@ -259,6 +265,16 @@ router.ws('/', async (ws, req, next) => {
 
                     }
 
+                    case RequestType.UPDATE: {
+                        /*
+                        - git pull
+                        - yarn install
+                        - yarn run compile
+                        - (arduino update?)
+                        - reboot
+                         */
+                    }
+
                 }
                 break;
             }
diff --git a/src/web/Setup.ts b/src/web/Setup.ts
index 49430c2..1d831ac 100644
--- a/src/web/Setup.ts
+++ b/src/web/Setup.ts
@@ -203,8 +203,8 @@ Dort werden die Behälter definiert, welche in den iTender gestellt werden.<br>D
 
             // Check
             let answer = await WebWebSocketHandler.request(RequestType.CHECK, newConf);
-
-            if (!(answer.data as boolean)) {
+            console.log(answer);
+            if (!(answer.data["success"] as boolean)) {
                 ele.innerHTML = `Die Konfiguration weist Fehler auf!<br>${answer.data["msg"]}`;
                 await errorModal.open();
                 return;
diff --git a/src/web/WebWebSocketHandler.ts b/src/web/WebWebSocketHandler.ts
index b454d46..3cd4b39 100644
--- a/src/web/WebWebSocketHandler.ts
+++ b/src/web/WebWebSocketHandler.ts
@@ -224,7 +224,7 @@ export class WebWebSocketHandler {
             });
             WebWebSocketHandler.send(new WebSocketPayload(WebSocketEvent.REQUEST, {
                 type: type,
-                content: content
+                data: content
             }));
         });
     }