diff --git a/client/src/stores/chat.js b/client/src/stores/chat.js
index 3147782..a025542 100644
--- a/client/src/stores/chat.js
+++ b/client/src/stores/chat.js
@@ -224,15 +224,25 @@ export const useChatStore = defineStore('chat', () => {
         updateSearchResults();
         break;
       case 'message':
+        // Debug-Logging für empfangene Nachrichten
+        if (data.isImage) {
+          console.log('[Bild empfangen] Von:', data.from, 'Typ:', data.imageType, 'Größe:', data.message ? data.message.length : 0, 'Zeichen');
+        }
+        
         if (currentConversation.value === data.from) {
-          messages.value.push({
+          const newMessage = {
             from: data.from,
             message: data.message,
             timestamp: data.timestamp,
             self: false,
             isImage: data.isImage || false,
             imageType: data.imageType || null
-          });
+          };
+          
+          console.log('[Nachricht hinzugefügt]', newMessage);
+          messages.value.push(newMessage);
+        } else {
+          console.log('[Nachricht ignoriert] Aktuelle Konversation:', currentConversation.value, 'Nachricht von:', data.from);
         }
         // Timeout zurücksetzen bei empfangener Nachricht
         resetTimeoutTimer();
diff --git a/server/broadcast.js b/server/broadcast.js
index e2a25d4..3dc18a4 100644
--- a/server/broadcast.js
+++ b/server/broadcast.js
@@ -624,14 +624,21 @@ export function setupBroadcast(io) {
     });
     
     // Sende an Empfänger (wenn online)
-    receiver.socket.emit('message', {
+    const messagePayload = {
       from: client.userName,
       message,
       messageId,
       timestamp: new Date().toISOString(),
       isImage: isImage || false,
       imageType: imageType || null
-    });
+    };
+    
+    // Debug-Logging für Bilder
+    if (isImage) {
+      console.log(`[Bild] Sende Bild von ${client.userName} an ${toUserName}, Größe: ${message ? message.length : 0} Zeichen, Typ: ${imageType || 'unbekannt'}`);
+    }
+    
+    receiver.socket.emit('message', messagePayload);
     
     // Bestätigung an Absender
     socket.emit('messageSent', { 
diff --git a/server/index.js b/server/index.js
index 55b25c5..571457d 100644
--- a/server/index.js
+++ b/server/index.js
@@ -34,7 +34,10 @@ const io = new SocketIOServer(server, {
     methods: ['GET', 'POST']
   },
   transports: ['websocket', 'polling'],
-  allowEIO3: true
+  allowEIO3: true,
+  maxHttpBufferSize: 10 * 1024 * 1024, // 10MB für große Bilder (Base64-kodiert)
+  pingTimeout: 60000,
+  pingInterval: 25000
 });
 
 console.log('Socket.IO Server initialisiert auf Express-Server');