diff --git a/libraries/Ethernet/src/Ethernet.cpp b/libraries/Ethernet/src/Ethernet.cpp
index 2e0f1a94f..d6c92d635 100644
--- a/libraries/Ethernet/src/Ethernet.cpp
+++ b/libraries/Ethernet/src/Ethernet.cpp
@@ -3,11 +3,6 @@
 #define SSID_MAX_LENGTH 32
 
 int arduino::EthernetClass::begin(uint8_t *mac, unsigned long timeout, unsigned long responseTimeout) {
-  if (eth_if == nullptr) {
-    //Q: What is the callback for?
-    _initializerCallback();
-    if (eth_if == nullptr) return 0;
-  }
   eth_if->set_dhcp(true);
   return _begin(mac, timeout, responseTimeout);
 }
diff --git a/libraries/Ethernet/src/Ethernet.h b/libraries/Ethernet/src/Ethernet.h
index 2fc2ef240..b1919e481 100644
--- a/libraries/Ethernet/src/Ethernet.h
+++ b/libraries/Ethernet/src/Ethernet.h
@@ -62,9 +62,6 @@ class EthernetClass : public MbedSocketClass {
     : eth_if(_if){};
   EthernetClass(){};
 
-  EthernetClass(voidPrtFuncPtr _cb)
-    : _initializerCallback(_cb){};
-
   int begin(uint8_t *mac = nullptr, unsigned long timeout = 60000, unsigned long responseTimeout = 4000);
   EthernetLinkStatus linkStatus();
   EthernetHardwareStatus hardwareStatus();
@@ -121,7 +118,6 @@ class EthernetClass : public MbedSocketClass {
   volatile EthernetLinkStatus _currentNetworkStatus = Unknown;
   EthernetInterface net;
   EthernetInterface *eth_if = &net;
-  voidPrtFuncPtr _initializerCallback;
   arduino::IPAddress ipAddressFromSocketAddress(SocketAddress socketAddress);
 };