diff --git a/backend/src/main.ts b/backend/src/main.ts
index 46b038a..426104c 100644
--- a/backend/src/main.ts
+++ b/backend/src/main.ts
@@ -14,5 +14,11 @@ async function bootstrap() {
   });
   await app.listen(3000);
   console.log('Wraith backend running on port 3000');
+
+  // Debug: monitor WebSocket upgrades at the HTTP server level
+  const server = app.getHttpServer();
+  server.on('upgrade', (req: any, socket: any) => {
+    console.log(`[HTTP-UPGRADE] ${req.method} ${req.url} from ${req.headers.origin || 'unknown'}`);
+  });
 }
 bootstrap();