--- a/src/wifi/model/wifi-remote-station-manager.cc	Fri Sep 04 22:17:57 2015 +0200
+++ b/src/wifi/model/wifi-remote-station-manager.cc	Fri Sep 04 22:18:00 2015 +0200
@@ -621,8 +621,8 @@
       WifiTxVector v;
       v.SetMode (GetNonUnicastMode ());
       v.SetTxPowerLevel (m_defaultTxPowerLevel);
-      v.SetChannelWidth (20);
-      v.SetShortGuardInterval (false);
+      v.SetChannelWidth (m_wifiPhy->GetChannelWidth ());
+      v.SetShortGuardInterval (m_wifiPhy->GetGuardInterval ());
       v.SetNss (1);
       v.SetNess (0);
       v.SetStbc (false);