diff --git a/src/slic3r/GUI/GUI_App.cpp b/src/slic3r/GUI/GUI_App.cpp
index cff271fb4d..0613625bb7 100644
--- a/src/slic3r/GUI/GUI_App.cpp
+++ b/src/slic3r/GUI/GUI_App.cpp
@@ -2752,6 +2752,9 @@ bool GUI_App::on_init_inner()
         }
     });
 
+    BOOST_LOG_TRIVIAL(info) << "start_check_network_state...";
+    start_check_network_state();
+
     m_initialized = true;
 
     flush_logs();
@@ -4114,6 +4117,82 @@ void GUI_App::on_user_login_handle(wxCommandEvent &evt)
     }
 }
 
+void GUI_App::start_check_network_state()
+{
+    boost::thread* test_microsoft = new boost::thread([this] {
+        start_test_url("www.microsoft.com");
+        });
+    boost::thread* test_apple = new boost::thread([this] {
+        start_test_url("www.apple.com");
+        });
+    boost::thread* test_amazon = new boost::thread([this] {
+        start_test_url("www.amazon.com");
+        });
+
+    m_check_network_thread = boost::thread([this] {
+        int sec_count = 1;
+        while (!m_is_closing) {
+            if (sec_count % 10 == 0) {
+                bool link_result = check_network_state();
+                if (!link_result) {
+                    BOOST_LOG_TRIVIAL(info) << "link_result = " << link_result;
+                }
+            }
+            boost::this_thread::sleep_for(boost::chrono::milliseconds(1000));
+            sec_count++;
+        }
+    });
+}
+
+bool GUI_App::check_network_state()
+{
+    bool result = false;
+    for (auto link : test_url_state) {
+        result = result | link.second;
+    }
+    if (m_agent) {
+        if (result)
+            m_agent->track_update_property("link_state", "1");
+        else
+            m_agent->track_update_property("link_state", "0");
+    }
+    return result;
+}
+
+void GUI_App::start_test_url(std::string url)
+{
+    int sec_count = 0;
+    while (!m_is_closing) {
+        if (sec_count % 10 == 0) {
+            Slic3r::Http http = Slic3r::Http::get(url);
+            int result = -1;
+            http.timeout_max(5)
+                .on_complete([&result](std::string body, unsigned status) {
+                    try {
+                        if (status == 200) {
+                            result = 0;
+                        }
+                    }
+                    catch (...) {
+                        ;
+                    }
+                })
+                .on_error([](std::string body, std::string error, unsigned int status) {
+                    ;
+                }).perform_sync();
+
+            if (result == 0) {
+                test_url_state[url] = true;
+            } else {
+                test_url_state[url] = false;
+            }
+        }
+        boost::this_thread::sleep_for(boost::chrono::milliseconds(1000));
+        sec_count++;
+    }
+}
+
+
 void GUI_App::check_track_enable()
 {
     if (app_config && app_config->get("firstguide", "privacyuse") == "true") {
diff --git a/src/slic3r/GUI/GUI_App.hpp b/src/slic3r/GUI/GUI_App.hpp
index 05d88fdcc0..93fb16d151 100644
--- a/src/slic3r/GUI/GUI_App.hpp
+++ b/src/slic3r/GUI/GUI_App.hpp
@@ -293,12 +293,16 @@ private:
     bool             m_adding_script_handler { false };
     bool             m_side_popup_status{false};
     HttpServer       m_http_server;
+
+    boost::thread    m_check_network_thread;
 public:
     void            check_filaments_in_blacklist(std::string tag_supplier, std::string tag_material, bool& in_blacklist, std::string& action, std::string& info);
     std::string     get_local_models_path();
     bool            OnInit() override;
     bool            initialized() const { return m_initialized; }
 
+    std::map<std::string, bool> test_url_state;
+
     //BBS: remove GCodeViewer as seperate APP logic
     explicit GUI_App();
     //explicit GUI_App(EAppMode mode = EAppMode::Editor);
@@ -420,6 +424,9 @@ public:
     void            on_set_selected_machine(wxCommandEvent& evt);
     void            on_user_login(wxCommandEvent &evt);
     void            on_user_login_handle(wxCommandEvent& evt);
+    void            start_check_network_state();
+    bool            check_network_state();
+    void            start_test_url(std::string url);
     void            enable_user_preset_folder(bool enable);
 
     // BBS
diff --git a/src/slic3r/Utils/NetworkAgent.cpp b/src/slic3r/Utils/NetworkAgent.cpp
index a1c84d16a2..9344f4bc98 100644
--- a/src/slic3r/Utils/NetworkAgent.cpp
+++ b/src/slic3r/Utils/NetworkAgent.cpp
@@ -1227,6 +1227,8 @@ int NetworkAgent::track_event(std::string evt_key, std::string content)
 
 int NetworkAgent::track_header(std::string header)
 {
+    if (!this->enable_track)
+        return 0;
     int ret = 0;
     if (network_agent && track_header_ptr) {
         ret = track_header_ptr(network_agent, header);
@@ -1238,6 +1240,9 @@ int NetworkAgent::track_header(std::string header)
 
 int NetworkAgent::track_update_property(std::string name, std::string value, std::string type)
 {
+    if (!this->enable_track)
+        return 0;
+
     int ret = 0;
     if (network_agent && track_update_property_ptr) {
         ret = track_update_property_ptr(network_agent, name, value, type);
diff --git a/src/slic3r/Utils/NetworkAgent.hpp b/src/slic3r/Utils/NetworkAgent.hpp
index 7ba730887d..1a8b727db5 100644
--- a/src/slic3r/Utils/NetworkAgent.hpp
+++ b/src/slic3r/Utils/NetworkAgent.hpp
@@ -178,6 +178,7 @@ public:
     int track_event(std::string evt_key, std::string content);
     int track_header(std::string header);
     int track_update_property(std::string name, std::string value, std::string type = "string");
+    bool get_track_enable() { return enable_track; }
 private:
     bool enable_track = false;
     void*                   network_agent { nullptr };