diff --git a/src/slic3r/GUI/ReleaseNote.cpp b/src/slic3r/GUI/ReleaseNote.cpp
index c0e8be7dd6..00459d2b74 100644
--- a/src/slic3r/GUI/ReleaseNote.cpp
+++ b/src/slic3r/GUI/ReleaseNote.cpp
@@ -1530,6 +1530,8 @@ void ConfirmBeforeSendDialog::rescale()
     m_button_cancel->Rescale();
 }
 
+static void nop_deleter(InputIpAddressDialog*) {}
+
 InputIpAddressDialog::InputIpAddressDialog(wxWindow *parent)
     : DPIDialog(static_cast<wxWindow *>(wxGetApp().mainframe),
                 wxID_ANY,
@@ -2002,6 +2004,8 @@ void InputIpAddressDialog::on_ok(wxMouseEvent& evt)
     Refresh();
     Layout();
     Fit();
+
+    token_.reset(this, nop_deleter);
     m_thread = new boost::thread(boost::bind(&InputIpAddressDialog::workerThreadFunc, this, str_ip, str_access_code, str_sn, str_model_id, str_name));
 }
 
@@ -2091,8 +2095,10 @@ void InputIpAddressDialog::update_test_msg_event(wxCommandEvent& evt)
     Fit();
 }
 
-void InputIpAddressDialog::post_update_test_msg(wxString text, bool beconnect)
+void InputIpAddressDialog::post_update_test_msg(std::weak_ptr<InputIpAddressDialog> w,wxString text, bool beconnect)
 {
+    if (w.expired()) return;
+
     wxCommandEvent event(EVT_UPDATE_TEXT_MSG);
     event.SetEventObject(this);
     event.SetString(text);
@@ -2102,7 +2108,9 @@ void InputIpAddressDialog::post_update_test_msg(wxString text, bool beconnect)
 
 void InputIpAddressDialog::workerThreadFunc(std::string str_ip, std::string str_access_code, std::string sn, std::string model_id, std::string name)
 {
-    post_update_test_msg(_L("connecting..."), true);
+    std::weak_ptr<InputIpAddressDialog> w = std::weak_ptr<InputIpAddressDialog>(token_);
+
+    post_update_test_msg(w, _L("connecting..."), true);
 
     detectResult detectData;
     auto result = -1;
@@ -2123,13 +2131,15 @@ void InputIpAddressDialog::workerThreadFunc(std::string str_ip, std::string str_
         detectData.bind_state   = "free";
     }
 
+    if (w.expired()) return;
+  
     if (result < 0) {
-        post_update_test_msg(wxEmptyString, true);
+        post_update_test_msg(w, wxEmptyString, true);
         if (result == -1) {
-            post_update_test_msg(_L("Failed to connect to printer."), false);
+            post_update_test_msg(w, _L("Failed to connect to printer."), false);
         }
         else if (result == -2) {
-            post_update_test_msg(_L("Failed to publish login request."), false);
+            post_update_test_msg(w, _L("Failed to publish login request."), false);
         }
         else if (result == -3) {
             wxCommandEvent event(EVT_CHECK_IP_ADDRESS_LAYOUT);
@@ -2141,18 +2151,19 @@ void InputIpAddressDialog::workerThreadFunc(std::string str_ip, std::string str_
     }
 
     if (detectData.bind_state == "occupied") {
-        post_update_test_msg(wxEmptyString, true);
-        post_update_test_msg(_L("The printer has already been bound."), false);
+        post_update_test_msg(w, wxEmptyString, true);
+        post_update_test_msg(w, _L("The printer has already been bound."), false);
         return;
     }
 
     if (detectData.connect_type == "cloud") {
-        post_update_test_msg(wxEmptyString, true);
-        post_update_test_msg(_L("The printer mode is incorrect, please switch to LAN Only."), false);
+        post_update_test_msg(w, wxEmptyString, true);
+        post_update_test_msg(w, _L("The printer mode is incorrect, please switch to LAN Only."), false);
         return;
     }
+    if (w.expired()) return;
 
-    CallAfter([this, detectData, str_ip, str_access_code]() {
+    CallAfter([this, detectData, str_ip, str_access_code, w]() {
         DeviceManager* dev = wxGetApp().getDeviceManager();
         BBLocalMachine machine;
         machine.dev_name = detectData.dev_name;
@@ -2162,6 +2173,8 @@ void InputIpAddressDialog::workerThreadFunc(std::string str_ip, std::string str_
         m_obj = dev->insert_local_device(machine, detectData.connect_type, detectData.bind_state, detectData.version, str_access_code);
 
 
+        if (w.expired()) return;
+
         if (m_obj) {
             m_obj->set_user_access_code(str_access_code);
             wxGetApp().getDeviceManager()->set_selected_machine(m_obj->dev_id, true);
@@ -2170,8 +2183,10 @@ void InputIpAddressDialog::workerThreadFunc(std::string str_ip, std::string str_
 
         closeCount = 1;
 
-        post_update_test_msg(wxEmptyString, true);
-        post_update_test_msg(wxString::Format(_L("Connecting to printer... The dialog will close later"), closeCount), true);
+        post_update_test_msg(w, wxEmptyString, true);
+        post_update_test_msg(w, wxString::Format(_L("Connecting to printer... The dialog will close later"), closeCount), true);
+
+        if (w.expired()) return;
 
 #ifdef __APPLE__
         wxCommandEvent event(EVT_CLOSE_IPADDRESS_DLG);
@@ -2271,7 +2286,6 @@ void InputIpAddressDialog::on_text(wxCommandEvent &evt)
 
 InputIpAddressDialog::~InputIpAddressDialog()
 {
-
 }
 
 void InputIpAddressDialog::on_dpi_changed(const wxRect& suggested_rect)
diff --git a/src/slic3r/GUI/ReleaseNote.hpp b/src/slic3r/GUI/ReleaseNote.hpp
index c15688808e..f155a13836 100644
--- a/src/slic3r/GUI/ReleaseNote.hpp
+++ b/src/slic3r/GUI/ReleaseNote.hpp
@@ -292,6 +292,7 @@ public:
     wxString comfirm_after_enter_text;
     wxString comfirm_last_enter_text;
 
+    std::shared_ptr<InputIpAddressDialog> token_;
     boost::thread* m_thread{nullptr};
 
     std::string m_ip;
@@ -346,7 +347,7 @@ public:
     void on_ok(wxMouseEvent& evt);
     void on_send_retry();
     void update_test_msg_event(wxCommandEvent &evt);
-    void post_update_test_msg(wxString text, bool beconnect);
+    void post_update_test_msg(std::weak_ptr<InputIpAddressDialog> w, wxString text, bool beconnect);
     void workerThreadFunc(std::string str_ip, std::string str_access_code, std::string sn, std::string model_id, std::string name);
     void OnTimer(wxTimerEvent& event);
     void on_text(wxCommandEvent& evt);