diff --git a/xos/synchronizer/model_policies/model_policy_att_workflow_driver_serviceinstance.py b/xos/synchronizer/model_policies/model_policy_att_workflow_driver_serviceinstance.py
index 10667b1..7dbf07d 100644
--- a/xos/synchronizer/model_policies/model_policy_att_workflow_driver_serviceinstance.py
+++ b/xos/synchronizer/model_policies/model_policy_att_workflow_driver_serviceinstance.py
@@ -206,18 +206,22 @@
         # - the status has changed
         # - we get a DHCPACK event
         if cur_status != subscriber.status or si.dhcp_state == "DHCPACK":
-            self.logger.debug(
-                "MODEL_POLICY: updating subscriber",
-                onu_device=subscriber.onu_device,
-                authentication_state=si.authentication_state,
-                subscriber_status=subscriber.status)
             if subscriber.status == "awaiting-auth":
                 self.delete_subscriber_ip(subscriber, si.ip_address)
                 subscriber.mac_address = ""
             elif si.ip_address and si.mac_address:
                 self.update_subscriber_ip(subscriber, si.ip_address)
                 subscriber.mac_address = si.mac_address
-            subscriber.save_changed_fields(always_update_timestamp=True)
+
+            # NOTE SEBA-744 if the update is a DHCP assignment we don't want to trigger model_policies and sync_steps
+            important_change = (cur_status != subscriber.status)
+            self.logger.debug(
+                "MODEL_POLICY: updating subscriber",
+                onu_device=subscriber.onu_device,
+                authentication_state=si.authentication_state,
+                subscriber_status=subscriber.status,
+                always_update_timestamp=important_change)
+            subscriber.save_changed_fields(always_update_timestamp=important_change)
         else:
             self.logger.debug("MODEL_POLICY: subscriber status has not changed", onu_device=subscriber.onu_device,
                               authentication_state=si.authentication_state, subscriber_status=subscriber.status)
diff --git a/xos/synchronizer/model_policies/test_model_policy_att_workflow_driver_serviceinstance.py b/xos/synchronizer/model_policies/test_model_policy_att_workflow_driver_serviceinstance.py
index 7de68cb..ee0037f 100644
--- a/xos/synchronizer/model_policies/test_model_policy_att_workflow_driver_serviceinstance.py
+++ b/xos/synchronizer/model_policies/test_model_policy_att_workflow_driver_serviceinstance.py
@@ -249,7 +249,8 @@
             ip_mock.return_value = []
 
             self.policy.update_subscriber(sub, self.si)
-            sub_save.assert_called()
+            sub_save.assert_called_with(always_update_timestamp=False,
+                update_fields=['id', 'mac_address', 'onu_device', 'status'])
             self.assertEqual(sub.mac_address, self.si.mac_address)
 
             ip_mock.assert_called_with()
@@ -271,7 +272,8 @@
             ip_mock.return_value = []
 
             self.policy.update_subscriber(sub, self.si)
-            sub_save.assert_called()
+            sub_save.assert_called_with(always_update_timestamp=False,
+                                        update_fields=['id', 'mac_address', 'onu_device', 'status'])
             self.assertEqual(sub.mac_address, self.si.mac_address)
 
             saved_ip = ip_mock.call_args[0][0]