diff --git a/applications/VK_Client.c b/applications/VK_Client.c
index d080632..5d0daeb 100644
--- a/applications/VK_Client.c
+++ b/applications/VK_Client.c
@@ -27,7 +27,7 @@ int16_t EC800K_Reset(void) {
 
   lte_dev.config_sta = false;
   lte_dev.client1->connect_sta = false;
-  lte_dev.client2->connect_sta = false;
+  //lte_dev.client2->connect_sta = false;
 
   rt_thread_mdelay(3000);
   BSP_LTE_SendData((uint8_t *)"+++", 3);
@@ -97,6 +97,14 @@ int16_t client_tcp_connect(Cclient_t *client) {
       return -1;
     }
   }
+
+  //
+  BSP_LTE_SendCmd(AT_CFG_TRANS_SIZE, DEFAULT_EXPECT, DEFAULT_ERROR,
+                  LTE_CMD_WAIT_LLONG);
+  BSP_LTE_SendCmd(AT_CFG_TRANS_WAITTM, DEFAULT_EXPECT, DEFAULT_ERROR,
+                  LTE_CMD_WAIT_LLONG);
+  //
+
   // 2, 打开链接
   memset(cmd_cmd, 0, sizeof(cmd_cmd));
   memset(cmd_str, 0, sizeof(cmd_str));
diff --git a/applications/drv_ec800k.h b/applications/drv_ec800k.h
index 5cf4dde..bd2bf7f 100644
--- a/applications/drv_ec800k.h
+++ b/applications/drv_ec800k.h
@@ -190,6 +190,11 @@ extern "C" {
 #define AT_MFSATTRI "AT+MFSATTRI=\"%s\"\r\n"
 #define AT_MFSREAD "AT+MFSREAD=\"%s\",%d,%d\r\n"
 
+
+//AT CFG
+#define AT_CFG_TRANS_SIZE "AT+QICFG=\"transpktsize\",512\r\n"
+#define AT_CFG_TRANS_WAITTM "AT+QICFG=\"transwaittm\",0\r\n"
+
 // #define GSM_BT_LIVE		5*60*1000			// 5min
 typedef struct _connect_state {
   bool connected;