diff --git a/src/python_testing/TC_CNET_1_4.py b/src/python_testing/TC_CNET_1_4.py
new file mode 100644
index 00000000000000..9bd9f707d3fab1
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+++ b/src/python_testing/TC_CNET_1_4.py
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+#
+#    Copyright (c) 2024 Project CHIP Authors
+#    All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License");
+#    you may not use this file except in compliance with the License.
+#    You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS,
+#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#    See the License for the specific language governing permissions and
+#    limitations under the License.
+#
+
+import logging
+import string
+from typing import Optional
+
+import chip.clusters as Clusters
+from chip.clusters.Types import NullValue
+from matter_testing_support import MatterBaseTest, TestStep, async_test_body, default_matter_test_main, type_matches
+from mobly import asserts
+
+
+class TC_CNET_1_4(MatterBaseTest):
+    def steps_TC_CNET_1_4(self):
+        return [TestStep(1, 'TH reads from the DUT the Network Commissioning Cluster FeatureMap with wildcard endpoint. If fewer than two endpoints have Network Commissioning Cluster, skip the remaining steps in this test case'),
+                TestStep(2, 'TH reads from the DUT the General Commissioning Cluster SupportsConcurrentConnection attribute and checks that it is true'),
+                TestStep(3, 'TH reads from the DUT the Descriptor Cluster DeviceTypeList attribute and check that the device type of the endpoint with Network Commissioning Cluster is Root Node or Secondary Network Interface.')]
+
+    def def_TC_CNET_1_4(self):
+        return '[TC-CNET-1.4] Verification for Secondary Network Interface [DUT-Server]'
+
+    def pics_TC_CNET_1_4(self):
+        return ['CNET.S']
+
+    @async_test_body
+    async def test_TC_CNET_1_4(self):
+        cnet = Clusters.NetworkCommissioning
+        afeam = cnet.Attributes.FeatureMap
+
+        self.step(1)
+        # Read FeatureMap attribute with wildcard endpoint
+        feature_map_results = await self.default_controller.ReadAttribute(self.dut_node_id, [(afeam)], fabricFiltered=True)
+
+        if len(feature_map_results) <= 1:
+            logging.info('Fewer than two endpoints have Network Commissioning Cluster, skipping remaining steps')
+            self.skip_all_remaining_steps(2)
+            return
+
+        endpoints = []
+        for endpoint, data in feature_map_results.items():
+            endpoints.append(endpoint)
+        logging.info(f"Network Commissioning Cluster on endpoints: {endpoints}")
+
+        self.step(2)
+        cgen = Clusters.GeneralCommissioning
+        ascc = cgen.Attributes.SupportsConcurrentConnection
+        concurrent_connection = await self.read_single_attribute_check_success(cluster=cgen, attribute=ascc)
+        asserts.assert_true(concurrent_connection, "The device does not support concurrent connection commissioning")
+
+        self.step(3)
+        cdesc = Clusters.Descriptor
+        adevt = cdesc.Attributes.DeviceTypeList
+
+        for endpoint in endpoints:
+            device_type_list = await self.read_single_attribute_check_success(cluster=Clusters.Descriptor, attribute=adevt, endpoint=endpoint)
+            required_device_types = {17, 25} # Root Node device id: 0x11, Secondary Network Interface device id: 0x19
+            found_device_types = {device.deviceType for device in device_type_list}
+            asserts.assert_true(required_device_types.intersection(found_device_types),
+                                "Network Commissioning Cluster is not on Root Node or Secondary Network Interface")
+
+if __name__ == "__main__":
+    default_matter_test_main()