diff --git a/test/simulation/103-initstepslew b/test/simulation/103-initstepslew
index fe47b68..366e9b8 100755
--- a/test/simulation/103-initstepslew
+++ b/test/simulation/103-initstepslew
@@ -52,7 +52,7 @@ client_conf="initstepslew 5 192.168.123.1 192.168.123.2"
 
 min_sync_time=1
 max_sync_time=500
-server_conf="deny all"
+server_conf="deny 192.168.0.0/16"
 
 run_test || test_fail
 check_chronyd_exit || test_fail
diff --git a/test/simulation/136-broadcast b/test/simulation/136-broadcast
index 1488c53..36f1a48 100755
--- a/test/simulation/136-broadcast
+++ b/test/simulation/136-broadcast
@@ -8,7 +8,9 @@ server_conf="broadcast 64 192.168.123.255"
 client_server_options="offline"
 
 run_test || test_fail
-check_chronyd_exit || test_fail
+if check_config_h 'FEAT_CMDMON 1'; then
+	check_chronyd_exit || test_fail
+fi
 check_packet_interval && test_fail
 
 check_file_messages "	1	2	" 150 160 log.packets || test_fail
diff --git a/test/simulation/147-refresh b/test/simulation/147-refresh
index ea091e6..48f15fb 100755
--- a/test/simulation/147-refresh
+++ b/test/simulation/147-refresh
@@ -4,6 +4,8 @@
 
 test_start "address refreshment"
 
+check_config_h 'FEAT_CMDMON 1' || test_skip
+
 limit=1000
 servers=5
 client_conf="logdir tmp