diff --git a/templates/web/common/menubar.html.twig b/templates/web/common/menubar.html.twig
index d8021de270..cc528743eb 100644
--- a/templates/web/common/menubar.html.twig
+++ b/templates/web/common/menubar.html.twig
@@ -416,10 +416,13 @@
         });
     });
 
-    /**manage session and redirect to login page**/
-    var usr_id = '{{ app.getAuthenticator().user.getId }}';
-    var module = '{{ module }}';
+    // no need to launch pollNotifications if not connected on load page
+    {% if app.getAuthenticator().isAuthenticated() %}
+        /**manage session and redirect to login page**/
+        var usr_id = '{{ app.getAuthenticator().user.getId }}';
+        var module = '{{ module }}';
 
-    // start pooling recursively
-    window.setTimeout( function() { commonModule.pollNotifications(usr_id, module === 'prod', true); }, 2000);
+        // start pooling recursively
+        window.setTimeout( function() { commonModule.pollNotifications(usr_id, module === 'prod', true); }, 2000);
+    {% endif %}
 </script>