diff --git a/Ubiquitous/XiZi_IIoT/board/xidatong-riscv64/third_party_driver/ethernet/connect_w5500.c b/Ubiquitous/XiZi_IIoT/board/xidatong-riscv64/third_party_driver/ethernet/connect_w5500.c
index 34682a2bd..67e250bd9 100644
--- a/Ubiquitous/XiZi_IIoT/board/xidatong-riscv64/third_party_driver/ethernet/connect_w5500.c
+++ b/Ubiquitous/XiZi_IIoT/board/xidatong-riscv64/third_party_driver/ethernet/connect_w5500.c
@@ -335,6 +335,9 @@ void wiz_client_op_test(int argc, char *argv[]) {
   memset(recv_buf, '\0', g_wiznet_buf_size);
   memcpy(send_buf, argv[3], strlen(argv[3]));
   KPrintf("[W5500 Client] BUFFER: %s\n", send_buf);
+  while (getSn_SR(client_sock) == SOCK_CLOSED) {
+    wiz_client_op(client_sock, send_buf, strlen(send_buf), ip, port, SEND_DATA);
+  }
   int ret = wiz_client_op(client_sock, send_buf, strlen(send_buf), ip, port,
                           SEND_DATA);
   if (ret < 0) {
@@ -344,8 +347,8 @@ void wiz_client_op_test(int argc, char *argv[]) {
     // waiting for a responding.
     ret = wiz_client_op(client_sock, recv_buf, g_wiznet_buf_size, ip, port,
                         RECV_DATA);
-    KPrintf("received msg: %s\n", recv_buf);
     if (ret > 0) {
+      KPrintf("received msg: %s\n", recv_buf);
       break;
     }
   }