diff --git a/core/src/ten_runtime/binding/python/native/ten_env/ten_env_get_property.c b/core/src/ten_runtime/binding/python/native/ten_env/ten_env_get_property.c
index 5faf33951c..40a8809d37 100644
--- a/core/src/ten_runtime/binding/python/native/ten_env/ten_env_get_property.c
+++ b/core/src/ten_runtime/binding/python/native/ten_env/ten_env_get_property.c
@@ -318,17 +318,12 @@ PyObject *ten_py_ten_env_is_property_exist(PyObject *self, PyObject *args) {
         "Failed to parse argument when ten_env.is_property_exist.");
   }
 
-  ten_error_t err;
-  ten_error_init(&err);
-
-  bool is_exist = ten_env_is_property_exist(py_ten_env->c_ten_env, path, &err);
-  if (!ten_error_is_success(&err)) {
-    ten_error_deinit(&err);
-
-    return ten_py_raise_py_value_error_exception(
-        "Failed to check if property exists.");
+  ten_value_t *value =
+      ten_py_ten_property_get_and_check_if_exists(py_ten_env, path);
+  if (!value) {
+    return PyBool_FromLong(false);
   }
 
-  ten_error_deinit(&err);
-  return PyBool_FromLong(is_exist);
+  ten_value_destroy(value);
+  return PyBool_FromLong(true);
 }
diff --git a/core/src/ten_runtime/binding/python/native/ten_env/ten_env_is_cmd_connected.c b/core/src/ten_runtime/binding/python/native/ten_env/ten_env_is_cmd_connected.c
index 4475741ef9..babc6887d8 100644
--- a/core/src/ten_runtime/binding/python/native/ten_env/ten_env_is_cmd_connected.c
+++ b/core/src/ten_runtime/binding/python/native/ten_env/ten_env_is_cmd_connected.c
@@ -6,6 +6,57 @@
 //
 #include "include_internal/ten_runtime/binding/python/common/error.h"
 #include "include_internal/ten_runtime/binding/python/ten_env/ten_env.h"
+#include "ten_runtime/ten_env_proxy/ten_env_proxy.h"
+#include "ten_utils/macro/memory.h"
+
+typedef struct ten_env_notify_is_cmd_connected_info_t {
+  bool result;
+  ten_string_t name;
+  ten_event_t *completed;
+} ten_env_notify_is_cmd_connected_info_t;
+
+static ten_env_notify_is_cmd_connected_info_t *
+ten_env_notify_is_cmd_connected_info_create(const char *name) {
+  ten_env_notify_is_cmd_connected_info_t *info =
+      TEN_MALLOC(sizeof(ten_env_notify_is_cmd_connected_info_t));
+  TEN_ASSERT(info, "Failed to allocate memory.");
+
+  info->result = true;
+  ten_string_init_formatted(&info->name, "%s", name);
+  info->completed = ten_event_create(0, 1);
+
+  return info;
+}
+
+static void ten_env_notify_is_cmd_connected_info_destroy(
+    ten_env_notify_is_cmd_connected_info_t *info) {
+  TEN_ASSERT(info, "Invalid argument.");
+
+  ten_string_deinit(&info->name);
+  ten_event_destroy(info->completed);
+
+  TEN_FREE(info);
+}
+
+static void ten_env_proxy_notify_is_cmd_connected(ten_env_t *ten_env,
+                                                  void *user_data) {
+  TEN_ASSERT(user_data, "Invalid argument.");
+  TEN_ASSERT(ten_env && ten_env_check_integrity(ten_env, true),
+             "Should not happen.");
+
+  ten_env_notify_is_cmd_connected_info_t *info = user_data;
+  TEN_ASSERT(info, "Should not happen.");
+
+  ten_error_t err;
+  ten_error_init(&err);
+
+  info->result = ten_env_is_cmd_connected(
+      ten_env, ten_string_get_raw_str(&info->name), &err);
+
+  ten_event_set(info->completed);
+
+  ten_error_deinit(&err);
+}
 
 PyObject *ten_py_ten_env_is_cmd_connected(PyObject *self, PyObject *args) {
   ten_py_ten_env_t *py_ten_env = (ten_py_ten_env_t *)self;
@@ -26,8 +77,27 @@ PyObject *ten_py_ten_env_is_cmd_connected(PyObject *self, PyObject *args) {
   ten_error_t err;
   ten_error_init(&err);
 
-  bool is_connected =
-      ten_env_is_cmd_connected(py_ten_env->c_ten_env, cmd_name, &err);
+  ten_env_notify_is_cmd_connected_info_t *info =
+      ten_env_notify_is_cmd_connected_info_create(cmd_name);
+
+  if (!ten_env_proxy_notify(py_ten_env->c_ten_env_proxy,
+                            ten_env_proxy_notify_is_cmd_connected, info, false,
+                            &err)) {
+    ten_error_deinit(&err);
+    ten_env_notify_is_cmd_connected_info_destroy(info);
+
+    return ten_py_raise_py_value_error_exception(
+        "Failed to notify is command connected.");
+  }
+
+  PyThreadState *saved_py_thread_state = PyEval_SaveThread();
+  ten_event_wait(info->completed, -1);
+  PyEval_RestoreThread(saved_py_thread_state);
+
+  bool is_connected = info->result;
+
+  ten_env_notify_is_cmd_connected_info_destroy(info);
+
   if (!ten_error_is_success(&err)) {
     ten_error_deinit(&err);
 
diff --git a/tests/ten_runtime/integration/python/async_extension_basic_python/async_extension_basic_python_app/ten_packages/extension/default_async_extension_python/extension.py b/tests/ten_runtime/integration/python/async_extension_basic_python/async_extension_basic_python_app/ten_packages/extension/default_async_extension_python/extension.py
index c0fcc84202..f92307d34e 100644
--- a/tests/ten_runtime/integration/python/async_extension_basic_python/async_extension_basic_python_app/ten_packages/extension/default_async_extension_python/extension.py
+++ b/tests/ten_runtime/integration/python/async_extension_basic_python/async_extension_basic_python_app/ten_packages/extension/default_async_extension_python/extension.py
@@ -28,6 +28,12 @@ async def on_init(self, ten_env: AsyncTenEnv) -> None:
     async def on_start(self, ten_env: AsyncTenEnv) -> None:
         await asyncio.sleep(0.5)
         ten_env.log_debug("on_start")
+
+        assert ten_env.is_property_exist("unknown_field") is False
+
+        ten_env.set_property_string("string_field", "hello")
+        assert ten_env.is_property_exist("string_field") is True
+
         ten_env.on_start_done()
 
     async def on_deinit(self, ten_env: AsyncTenEnv) -> None:
@@ -41,6 +47,9 @@ async def on_cmd(self, ten_env: AsyncTenEnv, cmd: Cmd) -> None:
         # Mock async operation, e.g. network, file I/O.
         await asyncio.sleep(0.5)
 
+        assert ten_env.is_cmd_connected("hello") is True
+        assert ten_env.is_cmd_connected("unknown_cmd") is False
+
         # Send a new command to other extensions and wait for the result. The
         # result will be returned to the original sender.
         new_cmd = Cmd.create("hello")
diff --git a/tests/ten_runtime/smoke/extension_test/outer_thread/128_threads_attempt_to_suspend_1.cc b/tests/ten_runtime/smoke/extension_test/outer_thread/128_threads_attempt_to_suspend_1.cc
index 59cf3acffe..0860c0277f 100644
--- a/tests/ten_runtime/smoke/extension_test/outer_thread/128_threads_attempt_to_suspend_1.cc
+++ b/tests/ten_runtime/smoke/extension_test/outer_thread/128_threads_attempt_to_suspend_1.cc
@@ -47,10 +47,16 @@ class test_extension_1 : public ten::extension_t {
   explicit test_extension_1(const std::string &name) : ten::extension_t(name) {}
 
   void on_configure(ten::ten_env_t &ten_env) override {
+    // We have increased the path timeout to 20 minutes because, under limited
+    // computing resources, it is easy to exceed the path timeout without
+    // completing the data transmission. This can lead to the path being
+    // discarded, causing the test case to hang indefinitely. Therefore, we have
+    // extended the path timeout to avoid this situation.
+
     // clang-format off
     bool rc = ten_env.init_property_from_json( R"({
       "_ten": {
-        "path_timeout": 600000000
+        "path_timeout": 1200000000
       }
     })");
     // clang-format on
@@ -831,9 +837,15 @@ class test_extension_2 : public ten::extension_t {
                                      OUTER_THREAD_FOR_LOOP_CNT + 1) {}
 
   void on_configure(ten::ten_env_t &ten_env) override {
+    // We have increased the path timeout to 20 minutes because, under limited
+    // computing resources, it is easy to exceed the path timeout without
+    // completing the data transmission. This can lead to the path being
+    // discarded, causing the test case to hang indefinitely. Therefore, we have
+    // extended the path timeout to avoid this situation.
+
     ten_env.init_property_from_json(R"({
       "_ten": {
-        "path_timeout": 600000000
+        "path_timeout": 1200000000
       }
     })");
     ten_env.on_configure_done();