Index: /trunk/src/VBox/Devices/Network/DevE1000.cpp
===================================================================
--- /trunk/src/VBox/Devices/Network/DevE1000.cpp	(revision 71097)
+++ /trunk/src/VBox/Devices/Network/DevE1000.cpp	(revision 71098)
@@ -2716,5 +2716,14 @@
             e1kArmTimer(pThis, pThis->CTX_SUFF(pLUTimer), E1K_INIT_LINKUP_DELAY_US);
         }
-#endif /* E1K_LSC_ON_SLU */
+#else /* !E1K_LSC_ON_SLU */
+        if (   (value & CTRL_SLU)
+            && !(CTRL & CTRL_SLU)
+            && pThis->fCableConnected
+            && !TMTimerIsActive(pThis->CTX_SUFF(pLUTimer)))
+        {
+            /* PXE does not use LSC interrupts, see @bugref{9113}. */
+            STATUS |= STATUS_LU;
+        }
+#endif /* !E1K_LSC_ON_SLU */
         if ((value & CTRL_VME) != (CTRL & CTRL_VME))
         {