diff --git a/tests/ovn-northd.at b/tests/ovn-northd.at
index c22aff18b8..61e2fbcd4f 100644
--- a/tests/ovn-northd.at
+++ b/tests/ovn-northd.at
@@ -10591,7 +10591,7 @@ CHECK_NO_CHANGE_AFTER_RECOMPUTE
 
 # Test load balancer group now
 check as northd ovn-appctl -t NORTHD_TYPE inc-engine/clear-stats
-lbg1_uuid=$(ovn-nbctl create load_balancer_group name=lbg1)
+lbg1_uuid=$(ovn-nbctl --wait=sb create load_balancer_group name=lbg1)
 check_engine_stats lb_data norecompute compute
 check_engine_stats northd norecompute compute
 check_engine_stats lflow recompute nocompute
@@ -10603,20 +10603,20 @@ lb1_uuid=$(fetch_column nb:Load_Balancer _uuid)
 
 # Add lb to the lbg1 group
 check as northd ovn-appctl -t NORTHD_TYPE inc-engine/clear-stats
-check ovn-nbctl add load_balancer_group . load_Balancer $lb1_uuid
+check ovn-nbctl --wait=sb add load_balancer_group . load_Balancer $lb1_uuid
 check_engine_stats lb_data norecompute compute
 check_engine_stats northd norecompute compute
 check_engine_stats lflow recompute nocompute
 
 check as northd ovn-appctl -t NORTHD_TYPE inc-engine/clear-stats
-check ovn-nbctl clear load_balancer_group . load_Balancer
+check ovn-nbctl --wait=sb clear load_balancer_group . load_Balancer
 check_engine_stats lb_data norecompute compute
 check_engine_stats northd recompute nocompute
 check_engine_stats lflow recompute nocompute
 
 # Add back lb to the lbg1 group
 check as northd ovn-appctl -t NORTHD_TYPE inc-engine/clear-stats
-check ovn-nbctl add load_balancer_group . load_Balancer $lb1_uuid
+check ovn-nbctl --wait=sb add load_balancer_group . load_Balancer $lb1_uuid
 check_engine_stats lb_data norecompute compute
 check_engine_stats northd norecompute compute
 check_engine_stats lflow recompute nocompute
@@ -10624,7 +10624,7 @@ check_engine_stats lflow recompute nocompute
 CHECK_NO_CHANGE_AFTER_RECOMPUTE
 
 check as northd ovn-appctl -t NORTHD_TYPE inc-engine/clear-stats
-check ovn-nbctl add logical_switch sw0 load_balancer_group $lbg1_uuid
+check ovn-nbctl --wait=sb add logical_switch sw0 load_balancer_group $lbg1_uuid
 check_engine_stats lb_data norecompute compute
 check_engine_stats northd norecompute compute
 check_engine_stats lflow recompute nocompute
@@ -10669,7 +10669,7 @@ check_engine_stats lflow recompute nocompute
 CHECK_NO_CHANGE_AFTER_RECOMPUTE
 
 check as northd ovn-appctl -t NORTHD_TYPE inc-engine/clear-stats
-check ovn-nbctl clear logical_switch sw0 load_balancer_group
+check ovn-nbctl --wait=sb clear logical_switch sw0 load_balancer_group
 check_engine_stats lb_data norecompute compute
 check_engine_stats northd recompute nocompute
 check_engine_stats lflow recompute nocompute
@@ -10714,20 +10714,20 @@ check_engine_stats lflow recompute nocompute
 CHECK_NO_CHANGE_AFTER_RECOMPUTE
 
 check as northd ovn-appctl -t NORTHD_TYPE inc-engine/clear-stats
-check ovn-nbctl clear logical_router lr0 load_balancer_group
+check ovn-nbctl --wait=sb clear logical_router lr0 load_balancer_group
 check_engine_stats lb_data norecompute compute
 check_engine_stats northd recompute nocompute
 check_engine_stats lflow recompute nocompute
 
 # Add back lb group to logical switch and then delete it.
 check as northd ovn-appctl -t NORTHD_TYPE inc-engine/clear-stats
-check ovn-nbctl add logical_switch sw0 load_balancer_group $lbg1_uuid
+check ovn-nbctl --wait=sb add logical_switch sw0 load_balancer_group $lbg1_uuid
 check_engine_stats lb_data norecompute compute
 check_engine_stats northd norecompute compute
 check_engine_stats lflow recompute nocompute
 
 check as northd ovn-appctl -t NORTHD_TYPE inc-engine/clear-stats
-check ovn-nbctl clear logical_switch sw0 load_balancer_group -- \
+check ovn-nbctl --wait=sb clear logical_switch sw0 load_balancer_group -- \
     destroy load_balancer_group $lbg1_uuid
 check_engine_stats lb_data norecompute compute
 check_engine_stats northd recompute nocompute
@@ -10750,26 +10750,26 @@ lb3_uuid=$(fetch_column nb:Load_Balancer _uuid name=lb3)
 lb4_uuid=$(fetch_column nb:Load_Balancer _uuid name=lb4)
 
 check as northd ovn-appctl -t NORTHD_TYPE inc-engine/clear-stats
-lbg1_uuid=$(ovn-nbctl create load_balancer_group name=lbg1)
+lbg1_uuid=$(ovn-nbctl --wait=sb create load_balancer_group name=lbg1)
 check_engine_stats lb_data norecompute compute
 check_engine_stats northd norecompute compute
 check_engine_stats lflow recompute nocompute
 
 check as northd ovn-appctl -t NORTHD_TYPE inc-engine/clear-stats
-check ovn-nbctl set load_balancer_group . load_balancer="$lb2_uuid,$lb3_uuid,$lb4_uuid"
+check ovn-nbctl --wait=sb set load_balancer_group . load_balancer="$lb2_uuid,$lb3_uuid,$lb4_uuid"
 check_engine_stats lb_data norecompute compute
 check_engine_stats northd norecompute compute
 check_engine_stats lflow recompute nocompute
 
 check as northd ovn-appctl -t NORTHD_TYPE inc-engine/clear-stats
-check ovn-nbctl set logical_switch sw0 load_balancer_group=$lbg1_uuid
+check ovn-nbctl --wait=sb set logical_switch sw0 load_balancer_group=$lbg1_uuid
 check_engine_stats lb_data norecompute compute
 check_engine_stats northd norecompute compute
 check_engine_stats lflow recompute nocompute
 CHECK_NO_CHANGE_AFTER_RECOMPUTE
 
 check as northd ovn-appctl -t NORTHD_TYPE inc-engine/clear-stats
-check ovn-nbctl set logical_router lr1 load_balancer_group=$lbg1_uuid
+check ovn-nbctl --wait=sb set logical_router lr1 load_balancer_group=$lbg1_uuid
 check_engine_stats lb_data norecompute compute
 check_engine_stats northd norecompute compute
 check_engine_stats lflow recompute nocompute