https://github.com/thkukuk/ypserv/pull/2
diff --git a/ypxfr/ypxfr.c b/ypxfr/ypxfr.c
index 358ac8d..d44773b 100644
--- a/ypxfr/ypxfr.c
+++ b/ypxfr/ypxfr.c
@@ -517,8 +517,8 @@ ypxfr (char *map, char *source_host, char *source_domain, char *target_domain,
   if (ypproc_order_2 (&req_nokey, &resp_order, clnt_udp) != RPC_SUCCESS)
     {
       log_msg (clnt_sperror (clnt_udp, "ypproc_order_2"));
-      masterOrderNum = time (NULL); /* We set it to the current time.
-                                       So a new map will be always newer. */
+      clnt_destroy (clnt_udp);
+      return YPXFR_YPERR;
     }
   else if (resp_order.stat != YP_TRUE)
     {