diff --git a/src/slic3r/GUI/GUI_App.cpp b/src/slic3r/GUI/GUI_App.cpp
index 25722af1c9..ee14511046 100644
--- a/src/slic3r/GUI/GUI_App.cpp
+++ b/src/slic3r/GUI/GUI_App.cpp
@@ -1679,6 +1679,9 @@ void GUI_App::init_networking_callbacks()
                                 }
                                 event.SetInt(-1);
                             } else if (state == ConnectStatus::ConnectStatusLost) {
+                                obj->set_access_code("");
+                                obj->erase_user_access_code();
+                                m_device_manager->localMachineList.erase(obj->dev_id);
                                 m_device_manager->set_selected_machine("", true);
                                 event.SetInt(-1);
                                 BOOST_LOG_TRIVIAL(info) << "set_on_local_connect_fn: state = lost";