diff --git a/vmware_nsx_tempest_plugin/common/constants.py b/vmware_nsx_tempest_plugin/common/constants.py
index bbc7d2f..85890ff 100644
--- a/vmware_nsx_tempest_plugin/common/constants.py
+++ b/vmware_nsx_tempest_plugin/common/constants.py
@@ -42,9 +42,9 @@ MD_BASE_URL = "http://169.254.169.254/"
 
 # NSXV3 Port Security constants.
 NSX_BACKEND_TIME_INTERVAL = 40
-NSX_BACKEND_SMALL_TIME_INTERVAL = 15
-NSX_BACKEND_VERY_SMALL_TIME_INTERVAL = 10
-NSXP_BACKEND_SMALL_TIME_INTERVAL = 25
+NSX_BACKEND_SMALL_TIME_INTERVAL = 25
+NSX_BACKEND_VERY_SMALL_TIME_INTERVAL = 20
+NSXP_BACKEND_SMALL_TIME_INTERVAL = 30
 NSX_NETWORK_REALISE_TIMEOUT = 3
 
 # DFW
diff --git a/vmware_nsx_tempest_plugin/tests/nsxv3/api/test_nsx_routers.py b/vmware_nsx_tempest_plugin/tests/nsxv3/api/test_nsx_routers.py
index 1e23ccb..2c92e75 100644
--- a/vmware_nsx_tempest_plugin/tests/nsxv3/api/test_nsx_routers.py
+++ b/vmware_nsx_tempest_plugin/tests/nsxv3/api/test_nsx_routers.py
@@ -130,6 +130,7 @@ class NSXv3RoutersTest(base.BaseAdminNetworkTest):
             router_name=router_name, admin_state_up=True,
             external_network_id=CONF.network.public_network_id)
         if CONF.network.backend == 'nsxp':
+            time.sleep(constants.NSXP_BACKEND_SMALL_TIME_INTERVAL)
             nsx_router = self.nsxp.get_logical_router(body['name'], body['id'])
             self.assertEqual(body['name'], router_name)
             self.assertIsNotNone(nsx_router)
diff --git a/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_router_nonat_ops.py b/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_router_nonat_ops.py
index efad422..8cc3fc5 100644
--- a/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_router_nonat_ops.py
+++ b/vmware_nsx_tempest_plugin/tests/nsxv3/scenario/test_router_nonat_ops.py
@@ -353,12 +353,12 @@ class TestRouterNoNATOps(manager.NetworkScenarioTest):
         if CONF.network.backend == 'nsxp':
             route_adv_type_nat = 'TIER1_NAT' in nsx_router_policy[
                 'route_advertisement_types']
-            self.assertTrue(
+            self.assertFalse(
                 route_adv_type_nat,
                 nat_msg)
             route_adv_type_conn = 'TIER1_CONNECTED' in nsx_router_policy[
                 'route_advertisement_types']
-            self.assertFalse(route_adv_type_conn, adv_msg)
+            self.assertTrue(route_adv_type_conn, adv_msg)
         else:
             self.assertFalse(router_adv['advertise_nat_routes'], nat_msg)
             self.assertTrue(