diff --git a/.github/workflows/compile-examples.yml b/.github/workflows/compile-examples.yml
index 7aab170..6d996e2 100644
--- a/.github/workflows/compile-examples.yml
+++ b/.github/workflows/compile-examples.yml
@@ -12,8 +12,8 @@ jobs:
          "arduino:samd:mkr1000",
          "arduino:samd:mkrwifi1010",
          "arduino:samd:nano_33_iot",
-         "arduino:megaavr:uno2018",
-         '"esp8266:esp8266:huzzah" "https://arduino.esp8266.com/stable/package_esp8266com_index.json"'
+         "arduino:megaavr:uno2018"
+#         '"esp8266:esp8266:huzzah" "https://arduino.esp8266.com/stable/package_esp8266com_index.json"'
        ]
 
    steps:
diff --git a/src/MqttClient.cpp b/src/MqttClient.cpp
index 8e2684e..97f07a5 100644
--- a/src/MqttClient.cpp
+++ b/src/MqttClient.cpp
@@ -623,7 +623,11 @@ void MqttClient::poll()
   }
 }
 
+#ifndef ARDUINO_ARCH_ESP8266
 int MqttClient::connect(IPAddress ip, uint16_t port)
+#else
+int MqttClient::connect(const IPAddress& ip, uint16_t port)
+#endif
 {
   return connect(ip, NULL, port);
 }
diff --git a/src/MqttClient.h b/src/MqttClient.h
index e0e9d63..b46f622 100644
--- a/src/MqttClient.h
+++ b/src/MqttClient.h
@@ -65,10 +65,11 @@ class MqttClient : public Client {
   void poll();
 
   // from Client
-  virtual int connect(IPAddress ip, uint16_t port = 1883);
-  virtual int connect(const char *host, uint16_t port = 1883);
-#ifdef ESP8266
-  virtual int connect(const IPAddress& ip, uint16_t port) { return 0; }; /* ESP8266 core defines this pure virtual in Client.h */
+  virtual int connect(const char *host, uint16_t port);
+#ifndef ARDUINO_ARCH_ESP8266
+  virtual int connect(IPAddress ip, uint16_t port);
+#else
+  virtual int connect(const IPAddress& ip, uint16_t port); /* ESP8266 core 2.5.0 defines this pure virtual in Client.h */
 #endif
   virtual size_t write(uint8_t);
   virtual size_t write(const uint8_t *buf, size_t size);