diff --git a/vmware_nsx_tempest_plugin/tests/api/test_qos.py b/vmware_nsx_tempest_plugin/tests/api/test_qos.py
index ecce0ee..9e832f4 100644
--- a/vmware_nsx_tempest_plugin/tests/api/test_qos.py
+++ b/vmware_nsx_tempest_plugin/tests/api/test_qos.py
@@ -69,6 +69,7 @@ class BaseQosTest(base.BaseAdminNetworkTest):
         body = client_mgr.ports_client.create_port(
             network_id=network['id'], **kwargs)
         port = body.get('port', body)
+        cls.ports = []
         cls.ports.append(port)
         return port
 
@@ -424,15 +425,11 @@ class QosPolicyTest(BaseQosTest):
         network = self.create_shared_network('test network')
         self.addCleanup(test_utils.call_and_ignore_notfound_exc,
                         self.delete_network, network['id'])
-        port = self.create_port(network, qos_policy_id=policy['id'],
-                                client_mgr=self.primary_mgr)
-        self.addCleanup(test_utils.call_and_ignore_notfound_exc,
-                        self.delete_port, port['id'])
-        retrieved_port = self.show_port(port['id'],
-                                        client_mgr=self.primary_mgr)
-        # check if port is not attached to the policy
-        self.assertIsNone(retrieved_port['qos_policy_id'],
-                          'Error:Port is attached to qos policy')
+        self.assertRaises(
+            exceptions.NotFound,
+            self.create_port,
+            network,
+            qos_policy_id=policy['id'], client_mgr=self.primary_mgr)
 
     @decorators.attr(type='nsxv3')
     @decorators.idempotent_id('f8163237-fba9-4db5-9526-bad6d2343c76')
diff --git a/vmware_nsx_tempest_plugin/tests/nsxv/api/lbaas/base.py b/vmware_nsx_tempest_plugin/tests/nsxv/api/lbaas/base.py
index 6b23040..0b7a639 100644
--- a/vmware_nsx_tempest_plugin/tests/nsxv/api/lbaas/base.py
+++ b/vmware_nsx_tempest_plugin/tests/nsxv/api/lbaas/base.py
@@ -86,6 +86,7 @@ class BaseTestCase(base.BaseNetworkTest):
         cls.subnet = cls.create_subnet(cls.network)
         cls.tenant_id = cls.subnet.get('tenant_id')
         cls.subnet_id = cls.subnet.get('id')
+        cls.ports = []
         # NSX-v: load-balancer's subnet need to attach to exclusive-router
         if CONF.network.backend == "nsxv3":
             router_cfg = dict(
diff --git a/vmware_nsx_tempest_plugin/tests/nsxv3/api/test_nsx_floating_ip.py b/vmware_nsx_tempest_plugin/tests/nsxv3/api/test_nsx_floating_ip.py
index 3fb9d2e..7d51d12 100644
--- a/vmware_nsx_tempest_plugin/tests/nsxv3/api/test_nsx_floating_ip.py
+++ b/vmware_nsx_tempest_plugin/tests/nsxv3/api/test_nsx_floating_ip.py
@@ -50,8 +50,9 @@ class NSXv3FloatingIPTest(base.BaseNetworkTest):
         cls.router = cls.create_router(data_utils.rand_name('router-'),
                                        external_network_id=cls.ext_net_id)
         cls.create_router_interface(cls.router['id'], cls.subnet['id'])
+        cls.ports = []
         for i in range(2):
-            cls.create_port(cls.network)
+            cls.ports.append(cls.create_port(cls.network))
         cls.nsx = nsxv3_client.NSXV3Client(CONF.nsxv3.nsx_manager,
                                            CONF.nsxv3.nsx_user,
                                            CONF.nsxv3.nsx_password)
diff --git a/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_mdproxy.py b/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_mdproxy.py
index 2abdaea..636a5d8 100644
--- a/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_mdproxy.py
+++ b/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_mdproxy.py
@@ -27,6 +27,7 @@ LOG = logging.getLogger(__name__)
 
 
 class TestMDProxy(feature_manager.FeatureManager):
+
     """Test MDProxy.
 
     Adding test cases to test MDProxy in different scenarios such as
@@ -100,48 +101,54 @@ class TestMDProxy(feature_manager.FeatureManager):
         md_counter = 0
         logical_ports = self.nsx.get_os_logical_ports()
         for port_index in range(len(logical_ports)):
-            if logical_ports[port_index]["attachment"][
-                    "attachment_type"] == "METADATA_PROXY":
-                if logical_ports[port_index]["tags"][0]["tag"] == network_id:
-                    msg = "MDproxy logical port does not have proper tenant " \
-                          "id!!!"
+            if "attachment" in logical_ports[port_index]:
+                if logical_ports[port_index]["attachment"][
+                        "attachment_type"] == "METADATA_PROXY":
+                    if logical_ports[port_index][
+                            "tags"][0]["tag"] == network_id:
+                        msg = "MDproxy logical port does not "\
+                              "have proper tenant "\
+                              "id!!!"
+                        self.assertEqual(
+                            tenant_id, logical_ports[port_index]["tags"][1][
+                                "tag"], msg)
+                        md_counter += 1
+                    msg1 = "Admin state of MDProxy logical port is DOWN!!!"
+                    msg2 = "LS name does not start with mdproxy!!!"
+                    msg3 = "MDproxy logical port does not have any auto tag!!!"
+                    msg4 = "MDproxy logical port does not have scope tag as " \
+                        "os-neutron-net-id!!!"
+                    msg5 = "MDproxy logical port does not have scope tag as " \
+                        "os-project-id!!!"
+                    msg6 = "MDproxy logical port does not have scope tag as " \
+                        "os-project-name!!!"
+                    msg7 = "MDproxy logical port does not have scope tag as " \
+                        "os-api-version!!!"
                     self.assertEqual(
-                        tenant_id, logical_ports[port_index]["tags"][1][
-                            "tag"], msg)
-                    md_counter += 1
-                msg1 = "Admin state of MDProxy logical port is DOWN!!!"
-                msg2 = "LS name does not start with mdproxy!!!"
-                msg3 = "MDproxy logical port does not have any auto tag!!!"
-                msg4 = "MDproxy logical port does not have scope tag as " \
-                       "os-neutron-net-id!!!"
-                msg5 = "MDproxy logical port does not have scope tag as " \
-                       "os-project-id!!!"
-                msg6 = "MDproxy logical port does not have scope tag as " \
-                       "os-project-name!!!"
-                msg7 = "MDproxy logical port does not have scope tag as " \
-                       "os-api-version!!!"
-                self.assertEqual(
-                    "UP", logical_ports[port_index]["admin_state"], msg1)
-                self.assertIn("mdproxy-",
-                              logical_ports[port_index]["display_name"], msg2)
-                self.assertNotEqual(0, len(logical_ports[port_index]["tags"]),
-                                    msg3)
-                self.assertEqual(
-                    "os-neutron-net-id",
-                    logical_ports[port_index]["tags"][0]["scope"],
-                    msg4)
-                self.assertEqual(
-                    "os-project-id",
-                    logical_ports[port_index]["tags"][1]["scope"],
-                    msg5)
-                self.assertEqual(
-                    "os-project-name",
-                    logical_ports[port_index]["tags"][2]["scope"],
-                    msg6)
-                self.assertEqual(
-                    "os-api-version",
-                    logical_ports[port_index]["tags"][3]["scope"],
-                    msg7)
+                        "UP", logical_ports[port_index]["admin_state"], msg1)
+                    self.assertIn("mdproxy-",
+                                  logical_ports[port_index]["display_name"],
+                                  msg2)
+                    self.assertNotEqual(
+                        0,
+                        len(logical_ports[port_index]["tags"]),
+                        msg3)
+                    self.assertEqual(
+                        "os-neutron-net-id",
+                        logical_ports[port_index]["tags"][0]["scope"],
+                        msg4)
+                    self.assertEqual(
+                        "os-project-id",
+                        logical_ports[port_index]["tags"][1]["scope"],
+                        msg5)
+                    self.assertEqual(
+                        "os-project-name",
+                        logical_ports[port_index]["tags"][2]["scope"],
+                        msg6)
+                    self.assertEqual(
+                        "os-api-version",
+                        logical_ports[port_index]["tags"][3]["scope"],
+                        msg7)
         self.assertNotEqual(0, md_counter, "No logical port found for MD "
                                            "proxy!!!")
 
diff --git a/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_nsx_port_security.py b/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_nsx_port_security.py
index 54c2992..0aa958b 100644
--- a/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_nsx_port_security.py
+++ b/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_nsx_port_security.py
@@ -123,12 +123,14 @@ class TestNSXv3PortSecurityScenario(manager.NetworkScenarioTest):
     def get_port_id(self, network_id, subnet_id, instance):
         _, instance_addr = instance["addresses"].items()[0]
         instance_fixed_ip = instance_addr[0]["addr"]
+        port_id = None
         for port in self._list_ports():
-            port_fixed_ip = port["fixed_ips"][0]["ip_address"]
-            if port["network_id"] == network_id and port["fixed_ips"][0][
+            if "fixed_ips" in port:
+                port_fixed_ip = port["fixed_ips"][0]["ip_address"]
+                if port["network_id"] == network_id and port["fixed_ips"][0][
                     "subnet_id"] == subnet_id and instance["id"] == port[
-                    "device_id"] and port_fixed_ip == instance_fixed_ip:
-                port_id = port["id"]
+                        "device_id"] and port_fixed_ip == instance_fixed_ip:
+                    port_id = port["id"]
         self.assertIsNotNone(port_id, "Failed to find Instance's port id!!!")
         return port_id
 
diff --git a/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_provider_security_group.py b/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_provider_security_group.py
index dbc43e0..f77ca31 100644
--- a/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_provider_security_group.py
+++ b/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_provider_security_group.py
@@ -134,12 +134,14 @@ class TestProviderSecurityGroup(manager.NetworkScenarioTest):
     def get_port_id(self, network_id, subnet_id, instance):
         _, instance_addr = instance["addresses"].items()[0]
         instance_fixed_ip = instance_addr[0]["addr"]
+        port_id = None
         for port in self._list_ports():
-            port_fixed_ip = port["fixed_ips"][0]["ip_address"]
-            if port["network_id"] == network_id and port["fixed_ips"][0][
+            if "fixed_ips" in port:
+                port_fixed_ip = port["fixed_ips"][0]["ip_address"]
+                if port["network_id"] == network_id and port["fixed_ips"][0][
                     "subnet_id"] == subnet_id and instance["id"] == port[
-                    "device_id"] and port_fixed_ip == instance_fixed_ip:
-                port_id = port["id"]
+                        "device_id"] and port_fixed_ip == instance_fixed_ip:
+                    port_id = port["id"]
         self.assertIsNotNone(port_id, "Failed to find Instance's port id!!!")
         return port_id