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 22492d488..78837176b 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
@@ -326,17 +326,21 @@ void wiz_client_op_test(int argc, char *argv[]) {
   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);
-  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.
-  ret = wiz_client_op(client_sock, buf, g_wiznet_buf_size, ip, port, RECV_DATA);
-  if (ret > 0) {
-    KPrintf("received msg: %s\n", buf);
+  while (true) {
+    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.
+    ret =
+        wiz_client_op(client_sock, buf, g_wiznet_buf_size, ip, port, RECV_DATA);
+    if (ret > 0) {
+      KPrintf("received msg: %s\n", buf);
+      break;
+    }
   }
 }