diff --git a/vmware_nsx/plugins/nsx_v/vshield/edge_appliance_driver.py b/vmware_nsx/plugins/nsx_v/vshield/edge_appliance_driver.py
index 2c921aa9c7..f4b75ffaa4 100644
--- a/vmware_nsx/plugins/nsx_v/vshield/edge_appliance_driver.py
+++ b/vmware_nsx/plugins/nsx_v/vshield/edge_appliance_driver.py
@@ -582,37 +582,7 @@ class EdgeApplianceDriver(object):
                           e.response)
             raise e
 
-    def _update_nat_rule(self, task):
-        # TODO(fank): use POST for optimization
-        #             return rule_id for future reference
-        edge_id = task.userdata['edge_id']
-        if task != self.updated_task['nat'][edge_id]:
-            # this task does not have the latest config, abort now
-            # for speedup
-            return task_constants.TaskStatus.ABORT
-
-        rules = task.userdata['rules']
-        LOG.debug("VCNS: start updating nat rules: %s", rules)
-
-        nat = {
-            'featureType': 'nat',
-            'rules': {
-                'natRulesDtos': rules
-            }
-        }
-
-        try:
-            self.vcns.update_nat_config(edge_id, nat)
-            status = task_constants.TaskStatus.COMPLETED
-        except exceptions.VcnsApiException as e:
-            LOG.exception(_LE("VCNS: Failed to create snat rule:\n%s"),
-                          e.response)
-            status = task_constants.TaskStatus.ERROR
-
-        return status
-
-    def update_nat_rules(self, router_id, edge_id, snats, dnats,
-                         jobdata=None):
+    def update_nat_rules(self, edge_id, snats, dnats):
         LOG.debug("VCNS: update nat rule\n"
                   "SNAT:%(snat)s\n"
                   "DNAT:%(dnat)s\n", {
@@ -638,18 +608,20 @@ class EdgeApplianceDriver(object):
                 'snat', snat['src'], snat['translated'], vnic_index=vnic_index
             ))
 
-        userdata = {
-            'edge_id': edge_id,
-            'rules': nat_rules,
-            'jobdata': jobdata,
+        nat = {
+            'featureType': 'nat',
+            'rules': {
+                'natRulesDtos': nat_rules
+            }
         }
-        task_name = "update-nat-%s" % edge_id
-        task = tasks.Task(task_name, router_id, self._update_nat_rule,
-                          userdata=userdata)
-        task.add_result_monitor(self.callbacks.nat_update_result)
-        self.updated_task['nat'][edge_id] = task
-        self.task_manager.add(task)
-        return task
+
+        try:
+            self.vcns.update_nat_config(edge_id, nat)
+            return True
+        except exceptions.VcnsApiException as e:
+            LOG.exception(_LE("VCNS: Failed to create snat rule:\n%s"),
+                          e.response)
+            return False
 
     def update_routes(self, edge_id, gateway, routes):
         if gateway:
diff --git a/vmware_nsx/plugins/nsx_v/vshield/edge_utils.py b/vmware_nsx/plugins/nsx_v/vshield/edge_utils.py
index 48dccc6b64..b9ee28b43e 100644
--- a/vmware_nsx/plugins/nsx_v/vshield/edge_utils.py
+++ b/vmware_nsx/plugins/nsx_v/vshield/edge_utils.py
@@ -2192,9 +2192,7 @@ def _delete_interface(nsxv_manager, context, router_id, network_id,
 def update_nat_rules(nsxv_manager, context, router_id, snat, dnat):
     binding = nsxv_db.get_nsxv_router_binding(context.session, router_id)
     if binding:
-        task = nsxv_manager.update_nat_rules(
-            router_id, binding['edge_id'], snat, dnat)
-        task.wait(task_const.TaskState.RESULT)
+        nsxv_manager.update_nat_rules(binding['edge_id'], snat, dnat)
     else:
         LOG.warning(_LW("Bindings do not exists for %s"), router_id)
 
@@ -2309,6 +2307,3 @@ class NsxVCallbacks(object):
 
     def interface_update_result(self, task):
         LOG.debug("interface_update_result %d", task.status)
-
-    def nat_update_result(self, task):
-        LOG.debug("nat_update_result %d", task.status)
diff --git a/vmware_nsx/tests/unit/nsx_v/vshield/test_vcns_driver.py b/vmware_nsx/tests/unit/nsx_v/vshield/test_vcns_driver.py
index 7a2b707227..d8d0a6841b 100644
--- a/vmware_nsx/tests/unit/nsx_v/vshield/test_vcns_driver.py
+++ b/vmware_nsx/tests/unit/nsx_v/vshield/test_vcns_driver.py
@@ -360,10 +360,6 @@ class VcnsDriverTestCase(base.BaseTestCase):
         if task.status == ts_const.TaskStatus.COMPLETED:
             task.userdata['jobdata']['edge_delete_result'] = True
 
-    def nat_update_result(self, task):
-        if task.status == ts_const.TaskStatus.COMPLETED:
-            task.userdata['jobdata']['nat_update_result'] = True
-
     def interface_update_result(self, task):
         if task.status == ts_const.TaskStatus.COMPLETED:
             task.userdata['jobdata']['interface_update_result'] = True
@@ -404,7 +400,6 @@ class VcnsDriverTestCase(base.BaseTestCase):
 
     def test_update_nat_rules(self):
         self._deploy_edge()
-        jobdata = {}
         snats = [{
             'src': '192.168.1.0/24',
             'translated': '10.0.0.1'
@@ -424,10 +419,8 @@ class VcnsDriverTestCase(base.BaseTestCase):
             'translated': '192.168.2.1'
         }
         ]
-        task = self.vcns_driver.update_nat_rules(
-            'router-id', self.edge_id, snats, dnats, jobdata=jobdata)
-        task.wait(ts_const.TaskState.RESULT)
-        self.assertTrue(jobdata.get('nat_update_result'))
+        result = self.vcns_driver.update_nat_rules(self.edge_id, snats, dnats)
+        self.assertTrue(result)
 
         natcfg = self.vcns_driver.get_nat_config(self.edge_id)
         rules = natcfg['rules']['natRulesDtos']