Fix ESP32 KNX UDP multicastpackage

Fix ESP32 KNX UDP multicastpackage (#9811)
arendst · Nov 17, 2020 · 3d44203 · 3d44203
1 parent a66686d
commit 3d44203
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/lib/libesp32/ESP32-to-ESP8266-compat/src/ESP8266WiFi.h b/lib/libesp32/ESP32-to-ESP8266-compat/src/ESP8266WiFi.h
@@ -78,7 +78,10 @@ class WiFiUDP32 : public WiFiUDP
         }
         void beginPacketMulticast(IPAddress multicast, uint16_t port, IPAddress interfaceAddr)
         {
-
+            if (0 == WiFiUDP::beginMulticastPacket()) {
+              WiFiUDP::beginMulticast(multicast, port);
+            }
+            WiFiUDP::beginMulticastPacket();
         }
 };