Index: /trunk/src/VBox/NetworkServices/NAT/pxtcp.c
===================================================================
--- /trunk/src/VBox/NetworkServices/NAT/pxtcp.c	(revision 48237)
+++ /trunk/src/VBox/NetworkServices/NAT/pxtcp.c	(revision 48238)
@@ -1077,9 +1077,4 @@
     LWIP_ASSERT1(handler == &pxtcp->pmhdl);
     LWIP_ASSERT1(fd == pxtcp->sock);
-
-    if (revents & POLLNVAL) {
-        pxtcp->sock = INVALID_SOCKET;
-        return pxtcp_schedule_reset(pxtcp);
-    }
 
     if (revents & (POLLNVAL | POLLHUP | POLLERR)) {