--- a/src/devices/wifi/dca-txop.cc	Thu Apr 17 15:40:25 2008 -0700
+++ b/src/devices/wifi/dca-txop.cc	Thu Apr 17 15:50:49 2008 -0700
@@ -383,6 +383,7 @@
       m_currentPacket = 0;
       m_dcf->ResetCw ();
       m_dcf->StartBackoffNow (m_rng->GetNext (0, m_dcf->GetCw ()));
+      StartAccessIfNeeded ();
       MY_DEBUG ("tx broadcast");
     } 
   else