diff --git a/src/wifi/model/wifi-phy.cc b/src/wifi/model/wifi-phy.cc
index a003df923..743fda7c6 100644
--- a/src/wifi/model/wifi-phy.cc
+++ b/src/wifi/model/wifi-phy.cc
@@ -2692,6 +2692,14 @@ WifiPhy::StartReceiveHeader (Ptr<Event> event, Time rxDuration)
           return;
         }
 
+      if ((txVector.GetChannelWidth () >= 40) && (txVector.GetChannelWidth () > GetChannelWidth ()))
+        {
+          NS_LOG_DEBUG ("Packet reception could not be started because not enough channel width");
+          NotifyRxDrop (event->GetPacket (), UNSUPPORTED_SETTINGS);
+          MaybeCcaBusyDuration ();
+          return;
+        }
+
       if ((txVector.GetMode ().GetModulationClass () == WIFI_MOD_CLASS_HT) && (txVector.GetPreambleType () == WIFI_PREAMBLE_HT_GF))
         {
           //No non-HT PHY header for HT GF
@@ -3001,6 +3009,7 @@ WifiPhy::StartReceivePayload (Ptr<Event> event)
     {
       InterferenceHelper::SnrPer snrPer;
       snrPer = m_interference.CalculateHtPhyHeaderSnrPer (event);
+      NS_LOG_DEBUG ("snr(dB)=" << RatioToDb (snrPer.snr) << ", per=" << snrPer.per);
       canReceivePayload = (m_random->GetValue () > snrPer.per);
     }
   else