diff --git a/test/apps/scripts/network.sh b/test/apps/scripts/network.sh
index 385a83a4c..defdf9c7f 100755
--- a/test/apps/scripts/network.sh
+++ b/test/apps/scripts/network.sh
@@ -10,17 +10,25 @@ cd ${NETTEST_DIR}
 echo "Start network test......"
 
 ./tcp_server &
+sleep 0.2
 ./tcp_client
+
 ./udp_server &
+sleep 0.2
 ./udp_client
+
 ./unix_server &
+sleep 0.2
 ./unix_client
+
+./http_server &
+sleep 0.2
+./http_client
+
 ./socketpair
 ./sockoption
 ./listen_backlog
 ./send_buf_full
-./http_server &
-./http_client
 ./tcp_err
 ./tcp_poll
 ./udp_err