diff --git a/test/simulation/133-hwtimestamp b/test/simulation/133-hwtimestamp
index 113ea69..229d4ee 100755
--- a/test/simulation/133-hwtimestamp
+++ b/test/simulation/133-hwtimestamp
@@ -13,22 +13,25 @@ refclock_offset=10.0
 min_sync_time=4
 max_sync_time=20
 limit=200
-client_conf="hwtimestamp eth0"
-client_server_options="minpoll 0 maxpoll 0 minsamples 32"
+server_conf="hwtimestamp eth0"
+client_server_options="minpoll 0 maxpoll 0 minsamples 32 xleave"
 client_chronyd_options="-d"
 
-run_test || test_fail
-check_chronyd_exit || test_fail
-check_source_selection || test_fail
-check_sync || test_fail
+for client_conf in "hwtimestamp eth0" "hwtimestamp eth0
+acquisitionport 123"; do
+	run_test || test_fail
+	check_chronyd_exit || test_fail
+	check_source_selection || test_fail
+	check_sync || test_fail
 
-if check_config_h 'FEAT_DEBUG 1'; then
-	check_log_messages "HW clock samples" 190 200 || test_fail
-	check_log_messages "HW clock reset" 0 0 || test_fail
-	check_log_messages "Received.*tss=1" 1 1 || test_fail
-	check_log_messages "Received.*tss=2" 390 400 || test_fail
-	check_log_messages "update_tx_timestamp.*Updated" 50 140 || test_fail
-	check_log_messages "update_tx_timestamp.*Unacceptable" 50 140 || test_fail
-fi
+	if check_config_h 'FEAT_DEBUG 1'; then
+		check_log_messages "HW clock samples" 190 200 || test_fail
+		check_log_messages "HW clock reset" 0 0 || test_fail
+		check_log_messages "Received.*tss=1" 1 1 || test_fail
+		check_log_messages "Received.*tss=2" 390 400 || test_fail
+		check_log_messages "update_tx_timestamp.*Updated" 50 140 || test_fail
+		check_log_messages "update_tx_timestamp.*Unacceptable" 50 140 || test_fail
+	fi
+done
 
 test_pass