diff -r db85996de7c4 -r e9cc36e353d4 linklayercontrol/networkinterfacemgr/netcfgext/src/netcfgextnbase.cpp
--- a/linklayercontrol/networkinterfacemgr/netcfgext/src/netcfgextnbase.cpp	Mon Mar 15 12:46:10 2010 +0200
+++ b/linklayercontrol/networkinterfacemgr/netcfgext/src/netcfgextnbase.cpp	Thu Apr 01 00:00:09 2010 +0300
@@ -579,6 +579,9 @@
 					iAsynchDaemonCancel = NULL;
 					}
 				}
+			
+			// Clear out outstanding RMessage2 as it is no longer outstanding (it will be completed elsewhere)
+			iMessage = ESock::RLegacyResponseMsg();
 			}
 		//the RunL method will be called on the original request cancellation
 		}
@@ -733,8 +736,13 @@
 		}
 	else
 		{
-		// should never get here.
-		__ASSERT_DEBUG(EFalse, User::Panic(KSpecAssert_NifManNetCfgExtn, 10));
+		
+		// Async cancel must have completed
+		// Start deregistration if it was queued up
+		if (iDeregisterOnCompletionOfRequest)
+			{
+			Deregister(iDeregistrationCauseCode);
+			}
 		}
 	// ********************************************
 	// CAREFUL... consider the possible deletion of