Index: /trunk/src/VBox/NetworkServices/NAT/pxtcp.c
===================================================================
--- /trunk/src/VBox/NetworkServices/NAT/pxtcp.c	(revision 76979)
+++ /trunk/src/VBox/NetworkServices/NAT/pxtcp.c	(revision 76980)
@@ -2435,5 +2435,5 @@
 
     pxtcp->inbound_pull = 1;
-    if (pxtcp->outbound_close_done) {
+    if (pxtcp->pmhdl.slot < 0) {
         DPRINTF(("%s: pxtcp %p: pcb %p (deferred delete)\n",
                  __func__, (void *)pxtcp, (void *)pxtcp->pcb));