diff --git a/Shelly_Parser_MQTT/module.php b/Shelly_Parser_MQTT/module.php
index 7d53075..8541c2e 100644
--- a/Shelly_Parser_MQTT/module.php
+++ b/Shelly_Parser_MQTT/module.php
@@ -10,19 +10,98 @@ class Shelly_Parser_MQTT extends IPSModule
     {
         parent::Create();
 
-        // MQTT verbinden
+        // MQTT verbinden (nur Verknüpfung, noch kein Subscribe!)
         $this->ConnectParent('{C6D2AEB3-6E1F-4B2E-8E69-3A1A00246850}');
-
-        // Alles abonnieren
-        $this->Subscribe('#');
     }
 
     public function ApplyChanges()
     {
         parent::ApplyChanges();
 
+        // Parent verbinden
         $this->ConnectParent('{C6D2AEB3-6E1F-4B2E-8E69-3A1A00246850}');
-        $this->Subscribe('#');
+
+        // Auf Statusänderungen der eigenen Instanz hören
+        $this->RegisterMessage($this->InstanceID, IM_CHANGESTATUS);
+
+        // Auf Statusänderungen des Parents hören, falls vorhanden
+        $inst = IPS_GetInstance($this->InstanceID);
+        $parentID = $inst['ConnectionID'] ?? 0;
+        if ($parentID > 0 && IPS_InstanceExists($parentID)) {
+            $this->RegisterMessage($parentID, IM_CHANGESTATUS);
+        }
+
+        // WICHTIG:
+        // KEIN Subscribe() hier aufrufen!
+        // Subscribe passiert erst, wenn Instanz/Parent wirklich aktiv ist (MessageSink).
+    }
+
+    /* ---------------------------------------------------------
+     * MESSAGE SINK – REAKTION AUF STATUSÄNDERUNGEN
+     * ---------------------------------------------------------*/
+    public function MessageSink($TimeStamp, $SenderID, $Message, $Data)
+    {
+        $this->SendDebug('MessageSink', 'Sender=' . $SenderID . ' Message=' . $Message . ' Data=' . print_r($Data, true), 0);
+
+        if ($Message === IM_CHANGESTATUS) {
+
+            // Eigene Instanz-Statusänderung
+            if ($SenderID === $this->InstanceID) {
+                $newStatus = $Data[0] ?? 0;
+                $this->Log('STATUS', 'Instance status changed to ' . $newStatus);
+                if ($newStatus === IS_ACTIVE) {
+                    // Jetzt ist das Modul aktiv → Subscribe starten
+                    $this->Log('STATUS', 'Instance is ACTIVE → performing MQTT subscribe');
+                    $this->Subscribe('#');
+                }
+                return;
+            }
+
+            // Parent-Statusänderung
+            $inst = IPS_GetInstance($this->InstanceID);
+            $parentID = $inst['ConnectionID'] ?? 0;
+
+            if (($parentID > 0) && ($SenderID === $parentID)) {
+                $newStatus = $Data[0] ?? 0;
+                $this->Log('STATUS', 'Parent status changed to ' . $newStatus);
+
+                if ($newStatus === IS_ACTIVE) {
+                    // Parent wieder aktiv → neu subscriben
+                    $this->Log('STATUS', 'Parent is ACTIVE → performing MQTT subscribe');
+                    $this->Subscribe('#');
+                }
+            }
+        }
+    }
+
+    /* ---------------------------------------------------------
+     * HILFSFUNKTIONEN FÜR PARENT-CHECK & SICHERES SENDEN
+     * ---------------------------------------------------------*/
+    private function HasActiveParent(): bool
+    {
+        if (!IPS_InstanceExists($this->InstanceID)) {
+            return false;
+        }
+
+        $inst = IPS_GetInstance($this->InstanceID);
+        $parentID = $inst['ConnectionID'] ?? 0;
+        if ($parentID <= 0 || !IPS_InstanceExists($parentID)) {
+            return false;
+        }
+
+        $parentStatus = IPS_GetInstance($parentID)['InstanceStatus'];
+        return ($parentStatus === IS_ACTIVE);
+    }
+
+    private function SafeSendToParent(array $packet): void
+    {
+        if (!$this->HasActiveParent()) {
+            $this->Log('MQTT', 'Cannot send to parent – parent not active or not available');
+            return;
+        }
+
+        // Fehler unterdrücken, falls doch mal etwas schiefgeht
+        @$this->SendDataToParent(json_encode($packet));
     }
 
     /* ---------------------------------------------------------
@@ -47,11 +126,11 @@ class Shelly_Parser_MQTT extends IPSModule
             'Payload'          => ''
         ];
 
-        $this->SendDataToParent(json_encode([
+        $this->SafeSendToParent([
             'DataID' => '{043EA491-0325-4ADD-8FC2-A30C8EEB4D3F}'
-        ] + $packet));
+        ] + $packet);
 
-        $this->Log("Subscribe", $topic);
+        $this->Log('Subscribe', $topic);
     }
 
     /* ---------------------------------------------------------
@@ -67,11 +146,11 @@ class Shelly_Parser_MQTT extends IPSModule
             'Payload'          => $payload
         ];
 
-        $this->SendDataToParent(json_encode([
+        $this->SafeSendToParent([
             'DataID' => '{043EA491-0325-4ADD-8FC2-A30C8EEB4D3F}'
-        ] + $packet));
+        ] + $packet);
 
-        $this->Log("Publish", "$topic → $payload");
+        $this->Log('Publish', "$topic → $payload");
     }
 
     /* ---------------------------------------------------------
@@ -109,7 +188,7 @@ class Shelly_Parser_MQTT extends IPSModule
             ]
         ]);
 
-        $this->Log("MQTT SEND", "$topic : $payload");
+        $this->Log('MQTT SEND', "$topic : $payload");
 
         // Senden
         $this->Publish($topic, $payload);
@@ -123,19 +202,25 @@ class Shelly_Parser_MQTT extends IPSModule
         $this->Log('ReceiveData', $JSONString);
 
         $data = json_decode($JSONString, true);
-        if (!is_array($data)) return;
+        if (!is_array($data)) {
+            return;
+        }
 
         $topic   = $data['Topic']   ?? '';
         $payload = $data['Payload'] ?? '';
 
-        if ($topic === '') return;
+        if ($topic === '') {
+            return;
+        }
 
         $this->Log('ReceiveTopic', "$topic → $payload");
 
         $parts    = explode('/', $topic);
         $deviceID = $parts[0] ?? '';
 
-        if ($deviceID === '') return;
+        if ($deviceID === '') {
+            return;
+        }
 
         // Online-Status
         if (($parts[1] ?? '') === 'online') {
@@ -158,7 +243,7 @@ class Shelly_Parser_MQTT extends IPSModule
     {
         $value = ($payload === 'true' || $payload === '1');
 
-        $this->Log("Online", "$deviceID = $value");
+        $this->Log('Online', "$deviceID = " . ($value ? 'true' : 'false'));
 
         $varID = $this->EnsureBooleanVariable($deviceID, $deviceID . '_online', 'Online');
         SetValue($varID, $value);
@@ -169,13 +254,17 @@ class Shelly_Parser_MQTT extends IPSModule
      * ---------------------------------------------------------*/
     private function HandleRPC(string $deviceID, string $payload): void
     {
-        $this->Log("RPC", "$deviceID : $payload");
+        $this->Log('RPC', "$deviceID : $payload");
 
         $json = json_decode($payload, true);
-        if (!is_array($json)) return;
+        if (!is_array($json)) {
+            return;
+        }
 
         $src = $json['src'] ?? '';
-        if (!str_starts_with($src, 'shelly')) return;
+        if (!str_starts_with($src, 'shelly')) {
+            return;
+        }
 
         // Typ
         $type   = ShellyParser::ExtractType($src);
@@ -188,15 +277,15 @@ class Shelly_Parser_MQTT extends IPSModule
 
         // Outputs
         foreach ($mapped['outputs'] as $index => $value) {
-            $ident = $deviceID . "_output_" . $index;
-            $varID = $this->EnsureBooleanVariable($deviceID, $ident, "Output $index");
+            $ident = $deviceID . '_output_' . $index;
+            $varID = $this->EnsureBooleanVariable($deviceID, $ident, 'Output ' . $index);
             SetValue($varID, $value);
         }
 
         // Inputs
         foreach ($mapped['inputs'] as $index => $value) {
-            $ident = $deviceID . "_input_" . $index;
-            $varID = $this->EnsureBooleanVariable($deviceID, $ident, "Input $index");
+            $ident = $deviceID . '_input_' . $index;
+            $varID = $this->EnsureBooleanVariable($deviceID, $ident, 'Input ' . $index);
             SetValue($varID, $value);
         }
 
@@ -212,7 +301,7 @@ class Shelly_Parser_MQTT extends IPSModule
      * ---------------------------------------------------------*/
     private function EnsureActionScript(): int
     {
-        $scriptName = "~ShellyMQTT_Action_" . $this->InstanceID;
+        $scriptName = '~ShellyMQTT_Action_' . $this->InstanceID;
 
         foreach (IPS_GetChildrenIDs($this->InstanceID) as $cid) {
             $obj = IPS_GetObject($cid);
@@ -257,6 +346,7 @@ IPS_RequestAction($instance, $ident, $value);
 
             if ($o['ObjectIdent'] === $ident) {
 
+                // Outputs schaltbar machen
                 if (str_contains($ident, '_output_')) {
                     $actionScript = $this->EnsureActionScript();
                     IPS_SetVariableCustomAction($cid, $actionScript);
@@ -291,8 +381,9 @@ IPS_RequestAction($instance, $ident, $value);
         $folderID = $this->GetDeviceFolder($deviceID);
 
         foreach (IPS_GetChildrenIDs($folderID) as $cid) {
-            if (IPS_GetObject($cid)['ObjectIdent'] === $ident)
+            if (IPS_GetObject($cid)['ObjectIdent'] === $ident) {
                 return $cid;
+            }
         }
 
         $id = $this->RegisterVariableFloat($ident, $name);
@@ -305,8 +396,9 @@ IPS_RequestAction($instance, $ident, $value);
         $folderID = $this->GetDeviceFolder($deviceID);
 
         foreach (IPS_GetChildrenIDs($folderID) as $cid) {
-            if (IPS_GetObject($cid)['ObjectIdent'] === $ident)
+            if (IPS_GetObject($cid)['ObjectIdent'] === $ident) {
                 return $cid;
+            }
         }
 
         $id = $this->RegisterVariableString($ident, $name);
@@ -322,8 +414,9 @@ IPS_RequestAction($instance, $ident, $value);
         $folderIdent = 'folder_' . $deviceID;
 
         foreach (IPS_GetChildrenIDs($this->InstanceID) as $cid) {
-            if (IPS_GetObject($cid)['ObjectIdent'] === $folderIdent)
+            if (IPS_GetObject($cid)['ObjectIdent'] === $folderIdent) {
                 return $cid;
+            }
         }
 
         $folderID = IPS_CreateCategory();
@@ -350,4 +443,4 @@ IPS_RequestAction($instance, $ident, $value);
     }
 }
 
-?>
+?>
\ No newline at end of file