diff --git a/tests/scripts/thread-cert/border_router/test_manual_maddress.py b/tests/scripts/thread-cert/border_router/test_manual_maddress.py
index 536d3adca..78edac833 100755
--- a/tests/scripts/thread-cert/border_router/test_manual_maddress.py
+++ b/tests/scripts/thread-cert/border_router/test_manual_maddress.py
@@ -86,11 +86,12 @@ class ManualMulticastAddressConfig(thread_cert.TestCase):
 
         # TD registers for multicast address, MA1, at BR_1.
         td.add_ipmaddr_tun(MA1)
-        self.simulator.go(5)
+        self.simulator.go(10)
 
         # Host sends a ping packet to the multicast address, MA1. TD should
         # respond to the ping request.
-        host.ping(MA1, backbone=True, ttl=10, interface=host.get_ip6_address(config.ADDRESS_TYPE.ONLINK_ULA)[0])
+        self.assertTrue(
+            host.ping(MA1, backbone=True, ttl=10, interface=host.get_ip6_address(config.ADDRESS_TYPE.ONLINK_ULA)[0]))
         self.simulator.go(5)
 
     def verify(self, pv: pktverify.packet_verifier.PacketVerifier):