diff -r 81c69049bdab src/devices/wifi/yans-wifi-phy.cc
--- a/src/devices/wifi/yans-wifi-phy.cc	Fri Sep 03 09:56:51 2010 +0100
+++ b/src/devices/wifi/yans-wifi-phy.cc	Wed Sep 15 13:14:55 2010 +1000
@@ -338,6 +338,7 @@
   switch (m_state->GetState ()) {
   case YansWifiPhy::RX:
     NS_LOG_DEBUG ("drop packet because of channel switching while reception");
+    m_interference.NotifyRxEnd();
     m_endRxEvent.Cancel();
     goto switchChannel;
     break;