diff --git a/libraries/WiFiS3/examples/ConnectWithWPA/ConnectWithWPA.ino b/libraries/WiFiS3/examples/ConnectWithWPA/ConnectWithWPA.ino
index 7b8915bb9..850b9044b 100644
--- a/libraries/WiFiS3/examples/ConnectWithWPA/ConnectWithWPA.ino
+++ b/libraries/WiFiS3/examples/ConnectWithWPA/ConnectWithWPA.ino
@@ -100,14 +100,14 @@ void printCurrentNet() {
 }
 
 void printMacAddress(byte mac[]) {
-  for (int i = 5; i >= 0; i--) {
+  for (int i = 0; i < 6; i++) {
+    if (i > 0) {
+      Serial.print(":");
+    }
     if (mac[i] < 16) {
       Serial.print("0");
     }
     Serial.print(mac[i], HEX);
-    if (i > 0) {
-      Serial.print(":");
-    }
   }
   Serial.println();
 }
diff --git a/libraries/WiFiS3/examples/ScanNetworks/ScanNetworks.ino b/libraries/WiFiS3/examples/ScanNetworks/ScanNetworks.ino
index 49747d64b..252676aaf 100644
--- a/libraries/WiFiS3/examples/ScanNetworks/ScanNetworks.ino
+++ b/libraries/WiFiS3/examples/ScanNetworks/ScanNetworks.ino
@@ -5,7 +5,7 @@
   connect to any network, so no encryption scheme is specified.
 
   Circuit:
-   * Board with NINA module (Arduino MKR WiFi 1010, MKR VIDOR 4000 and Uno WiFi Rev.2)
+   * Uno R4 WiFi
 
   created 13 July 2010
   by dlf (Metodo2 srl)
@@ -108,14 +108,14 @@ void printEncryptionType(int thisType) {
 
 
 void printMacAddress(byte mac[]) {
-  for (int i = 5; i >= 0; i--) {
+  for (int i = 0; i < 6; i++) {
+    if (i > 0) {
+      Serial.print(":");
+    }
     if (mac[i] < 16) {
       Serial.print("0");
     }
     Serial.print(mac[i], HEX);
-    if (i > 0) {
-      Serial.print(":");
-    }
   }
   Serial.println();
 }
diff --git a/libraries/WiFiS3/examples/ScanNetworksAdvanced/ScanNetworksAdvanced.ino b/libraries/WiFiS3/examples/ScanNetworksAdvanced/ScanNetworksAdvanced.ino
index 9a32c37c9..fb7df4d9a 100644
--- a/libraries/WiFiS3/examples/ScanNetworksAdvanced/ScanNetworksAdvanced.ino
+++ b/libraries/WiFiS3/examples/ScanNetworksAdvanced/ScanNetworksAdvanced.ino
@@ -6,7 +6,7 @@
   BSSID and WiFi channel are printed
 
   Circuit:
-  * Board with NINA module (Arduino MKR WiFi 1010, MKR VIDOR 4000 and Uno WiFi Rev.2)
+  * Uno R4 WiFi
 
   This example is based on ScanNetworks
 
@@ -130,14 +130,14 @@ void print2Digits(byte thisByte) {
 }
 
 void printMacAddress(byte mac[]) {
-  for (int i = 5; i >= 0; i--) {
+  for (int i = 0; i < 6; i++) {
+    if (i > 0) {
+      Serial.print(":");
+    }
     if (mac[i] < 16) {
       Serial.print("0");
     }
     Serial.print(mac[i], HEX);
-    if (i > 0) {
-      Serial.print(":");
-    }
   }
   Serial.println();
 }
diff --git a/libraries/WiFiS3/src/WiFi.h b/libraries/WiFiS3/src/WiFi.h
index 587d1648a..9958b7c17 100644
--- a/libraries/WiFiS3/src/WiFi.h
+++ b/libraries/WiFiS3/src/WiFi.h
@@ -33,7 +33,6 @@ class CWifi {
 private: 
    void _config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1, IPAddress dns2);
    unsigned long _timeout;
-   uint8_t mac[6];
    std::vector<CAccessPoint> access_points;
    std::string ssid;
    std::string apssid;