diff --git a/components/lwip/api/api_msg.c b/components/lwip/api/api_msg.c
index a684a33bb..32a375419 100755
--- a/components/lwip/api/api_msg.c
+++ b/components/lwip/api/api_msg.c
@@ -1085,12 +1085,6 @@ lwip_netconn_do_delconn(void *m)
   } else
 #endif /* LWIP_NETCONN_FULLDUPLEX */
   {
-    if (!(state != NETCONN_CONNECT || IN_NONBLOCKING_CONNECT(msg->conn))) {
-      msg->err = ERR_INPROGRESS;
-      NETCONN_SET_SAFE_ERR(msg->conn, ERR_INPROGRESS);
-      LWIP_DEBUGF(API_MSG_DEBUG, ("netconn error:ERR_INPROGRESS\n"));
-      return;
-    }
     /* Drain and delete mboxes */
     netconn_drain(msg->conn);