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 92496b245..22492d488 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
@@ -312,7 +312,7 @@ void wiz_client_op_test(int argc, char *argv[]) {
    * argv[3]: msg
    */
   if (argc != 4) {
-    KPrintf("wiz_client_op <ip> <port> <msg>");
+    KPrintf("wiz_client_op <ip> <port> <msg>\n");
   }
   uint8_t client_sock = 2;
   uint8_t ip[4] = {192, 168, 31, 127};
@@ -323,15 +323,21 @@ void wiz_client_op_test(int argc, char *argv[]) {
   for (int i = 0; i < 4; ++i) {
     ip[i] = (uint8_t)tmp_ip[i];
   }
-  KPrintf("wiz client to %d.%d.%d.%d:%d", ip[0], ip[1], ip[2], ip[3], port);
+  KPrintf("wiz client to %d.%d.%d.%d:%d\n", ip[0], ip[1], ip[2], ip[3], port);
   uint8_t buf[g_wiznet_buf_size];
   sscanf(argv[3], "%s", buf);
-  wiz_client_op(client_sock, buf, g_wiznet_buf_size, ip, port, SEND_DATA);
+  int ret =
+      wiz_client_op(client_sock, buf, g_wiznet_buf_size, ip, port, SEND_DATA);
+  if (ret <= 0) {
+    KPrintf("[W5500] Client Op Failed.\n");
+  }
   MdelayKTask(10);
   memset(buf, 0, g_wiznet_buf_size);
   // waiting for a responding.
-  wiz_client_op(client_sock, buf, g_wiznet_buf_size, ip, port, RECV_DATA);
-  KPrintf("received msg: %s\n", buf);
+  ret = wiz_client_op(client_sock, buf, g_wiznet_buf_size, ip, port, RECV_DATA);
+  if (ret > 0) {
+    KPrintf("received msg: %s\n", buf);
+  }
 }
 
 SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0) | SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN) |